I've bought and then sold stuff here, hopefully no-one thinks I'm trying to make a profit from it... :shock: To be honest, there's easier ways to make a living...
Usually it's because it looked right at the time and I then found it wasn't quite what I was after (my electric bike was a nightmare for bits that wouldn't quite fit as intended), or because plans changed, or because it's a cheap way of trying something out... I've got all sorts of stuff here that I've never even unwrapped, and I might never use (look fournales forks spring to mind... :roll: ), and may well end up back on the for sale forum...
The fact is that a part is worth what someone is willing to pay for it at the time. Value and desirability goes up as well as down, and I'm afraid to say that a lot of people won't buy internationally, making a part availabke domestically a bit more desirable. Sometimes, this is down to trust, but mostly it's because international usually equals a massive pain in the arse to go and collect it from a parcel depot miles from home, followed by a customs and excise bill that adds an undetermined and often random amount to the cost that you never know until you pick it up. This usually ends up adding another 30ish % to whatever you paid for the item (including shipping), just for tax.
By the time that's all paid $x usually = £x, if you're lucky...