Many a time, but not with unicycles. I recently bought a defunct radio controlled car for £11, removed the 12AA Duracell batteries worth about £10, all the radio gear worth £45 and the fuel tank and then sold what remained for £15. I also just sold a set of juggling clubs for more than I bought them for new, there’s even sets on ebay new for less. Selling on ebay is almost entirely about your picture.
I got my first uni off ebay for £30 and it last me a month, I learnt to ride on it then I sorta broke it doing some silly trials on a £30 uni lawl, I got a nimbus trials for the jumps and a 24 inch one off ebay for £25 for some fun riding about
On eBay I bought an old Loyd unicycle from the 60’s. That’s the predecessor to the Schwinn, and it appears to have come with its original, painful-looking leather bike seat. Also I found a Univega unicycle, which was identical to the early-80s Miyata Deluxe with one exception, reversed colors on the seat and Univega stickers! Also I got a pink 20" unicycle that must have originated in Japan; it had the JUA “sticker of approval” on it. It probably came over with a little girl who had learned over there and maybe lost interest due to no unicycling in her school over here? Anyway that one’s cool because it has a built-in kickstand!
Also I’ve found lots of cool unicycle “collectibles” (others would call them knick-knacks or dust collectors) on eBay. Examples (not all from eBay)
I bought a virtually brand new nimbus bc wheel on ebay for $40. It’s usually pretty hard to find what you’re looking for, but if you give it some time (sometimes weeks or even months), you can find some awesome deals.
my friend got a simple Red 20" Learner unicycle for only $30 and it lasted him for more than a year. As he got better and moer involved, he gave his unicycle away to some guy at school (he can just about ride it now) and now hes got a Nimbus X Street but I reckon the 20" learner is a good bargain.
I’ve been watching Ebay here in the US for several months, looking at unicycles specifically.
To be honest, I don’t see many bargains. I’ve bought several NEW unicycles off Ebay, and they were the best deal I’ve found, but not drastically lower than anywhere else, either. It seems that on used serious unicycles, they generally fetch pretty good prices. Something that costs $500 new might go for $300 used + shipping. That may be worth buying, but not exactly a bargain, either. I did see one unicyle recently that only got a couple of bids and was still pretty low, but then it didn’t reach reserve, either, so it wasn’t actually a sale.