Unicycles are cooler! More fun to ride, safer, I can go where ever I want with it (not with my bike), no handle bars to hold on and my bikes are all crap:p
I could say a lot or I could just say one thing 
It’s more convenient 
Agreed - It takes your mind off everything else that’s happening - I can lose myself on my unicycle as well as I can lose myself in a good book.
It’s generally more convenient for me - I can pick my unicycle up/wheel it round shops - I’d have to lock my bike up outside.
I can take my unicycle on the bus - you’re not allowed to take bikes on.
I don’t hate bikes - I hate some of the people who ride them.
I kinda think I’d prefer trials biking 
before I got into unicycling I was actually feebly attempting bike trials on my mountain bike, not knowing there were specialist trials bikes… but I had a fall, hurt my wrist and never went back to it! now that I know about trials bikes it always crosses my mind to buy one, but I’m happy unicycling and trials biking is EXPENSIVE!
So’s unicycling… It’s addictive and before you know it you have more than 3 unicycles with various expensive parts on them 
All of this plus they last longer than a bike, cost less to buy, upgrade, and repair, so I can have six unis in place of one or two bikes.
Also, because unis are slower, my dogs get a better workout and have more time to swim and run.
And best of all: Uni is the single best workout I have ever done!!
- Because it just take me 5 min more to get to my college than in a bike and is a lot funnier, so it worths the extra time for me.
- I really LOVE how it feels to go sightly inclinated when im climbing or descending a hill, it seems like youre going to fall but you dont (most of times :P)
Bicycles are so pedestrian.
Why do I choose a unicycle over a bike?
I don’t. It is just in the rotation of things to do.
Mtb a few times a week.
Road bike a few times a month.
Muni once a month or so.
trials biking’s different, if you did what you do with uni’s with bikes it’d be in a different league! your muni is cheaper than an MTB of the same calibur, your trials? the cheapest trials bikes come in at about £350 
I rode bikes, rollerblades, skateboard when I was younger but never really had fun with them. The Unicycle is just me, it makes sense. And now, its what I do. Lots of fun, good challenge, exercise I have been missing… its just perfect… and still getting better everyday.
I learned to ski when I was in High School, and quickly developed into a decent skier. I could pretty much go anywhere I wanted to on skis (the key being anywhere I wanted). I stopped at the slopes that just looked to crazy to go on (i.e. was almost straight down, or covered with knee killing moguls, or heavily treed). In my 40’s I took up snowboarding, and love it more than skiing, because the thrill of the possibility of a fall is always there. I broke my wrist snowboarding on the first day of a long weekend away from home. I kind of knew it was broken, but did not get it x-rayed. I swapped the board for a pair of skis, and continued to ski the rest of the weekend, and got my wrist x-rayed at home the next week (it was broken). For me it’s the difference between ho-hum, and heart pumping, adrenaline pumping fun. This is the same type of reason I like unicycling over cycling. The other, is that I am also a runner, and as a runner you never rest, except to stop, and unicycling is the exact same thing, you only really rest when you get off the unicycle … cycling is not like that.
But this summer… I will probably be doing a trip up to some ski resorts and take my bike and my muni to ride on the mountain
well, this answer is probably not the one you guys are looking for, but it is the truth.
XC mountain biking is my love (i live 1 hour east of toronto, and have some AMAZING trails), but being a poor student, I found myself without a set of wheels when my $2k hardtail decided last fall was a good time to get stolen.
I have a crapy old ten speed I found in a ditch last spring, so my plan was to bring it back to life, give it a cyclocross overhaul, and try make it through my trails alive.
fortunately, I finally had a chance to sit on a unicycle for the first time in my life (i’ve always wanted to give one a spin). they are soooo much easier than I thought they would be (but so much harder in different ways), and I managed to get a decked out nimbus trials for two hundred bones. yes, I won’t be enjoying the trails to the same extent that I was (though you never know!), but I can now do something I’ve wanted to do forever (trials) but on the cheap.
so, I guess the reason I ride a uni instead of a bike are for these reasons
-cheap
-fun just sitting on it
-neat way to get into different riding styles without buying a new bike
I’m going to have to get a shirt made before I take this out on the streets that says something like “NOT A CLOWN SPORT” though, because every freakin’ person that’s seen me on it brings up the circus >:\
Just make one that says:
“I ride down mountains on this thing, your argument is invalid”
Hmm, I might get one of them
Just say “at least I’m making money” with a big grin. wearing protective gear like shin guards, helmet, and gloves helps too, because they think you are doing something more extreme then. Also a proper street/trials/flat uni looks cooler than a torker or a sun, and once you start doing tricks, then the combination of all those things stops the clown comment a bit, and you’re mostly left with the “wheres the wheel” comment.
Or if you want to be a jerk you can just start laughing obnoxiously loud when they say it, hold your side as you laughing and occasionally throw in a few “oh my god that’s so funny” “clowns are in the circus and ride unicycles” “can’t believe I never thought of that”
Actually, it was one of my wild dream when i was at teen age. As soon as i learned how to do the wheely on my easy rider bike, I said to my self " why not just ride a unicycle? Unicycle were not yet very popular way back then so i forgot the idea. Now it became popular, since last year, i started day dreaming again. Hmm, why not. i’m not too old.
Now i can say, yeah. it’s fun, challenging and for me it’s comfortable. whenever i needed some physical activity i can have it, in the house, in the park, in the parking lot, at work? yes even at work i bring it but not during work.
What about the bike? The last time I bought a bike was 1988. If i ride a bike, i would be tempted to go to far places like what i did before which i cannot do now here in Jeddah. It’s dangerous even my wife doesn’t agree with the idea but when i told her " what about unicycle? yeah, why not"
BAHH!
3 of the 5 points you made have been scientifically tested and proven to be false.
Me too. And some of the people who drive, walk and go to the supermarket. Not for those reasons though.