StephenH

"people offering you 20-50% of your asking price"

The flip side of this is people offering their stuff at double or triple what it's worth, which is also fairly common.

Part of the thinking on this, though, is that what something is worth to you is not what it's worth to me. Maybe you remember how much you paid for it new, you know how wonderfully it worked, you associate it with the big climb or the fast race or whatever. And I come along and don't care what it cost new, have never used it, so can't guess how wonderfully it might work, and don't have any emotional attachment to it. So if it's worth X to you and worth Y to me, I can either do nothing, or shoot you an email letting you know what it's worth to me and see if you have any interest. If you get a bunch of lowball offers and a few people offering to buy it at your price, great. If all you get are lowball offers, maybe it's you that's too high, rather than the lowballers being too low.