I just saw that a book that I bought second hand (it's in good condition - appears as though it's never been used) about a year and a half ago for 15 euros is offered in my country's biggest webshop for 9,85. New. Oops.

And the stupidest thing is that it wasn't even offered for 15 euros - it was on a flea market and they asked me what I'd be willing to pay. So I said 15 euros.

It's a good book, easily worth 20 or 25 euros I think, but it's still a bit stupid.