I have a couple of Dark Knight Hot toys. Do they really go for 500 or more? If so, I might sell them to help me build a computer.
I sold a DX TDKR Batman and a DX TDK Joker 2.0 and think I cleared about $250-300 for each of them. That made me back the money I spent on them and a little extra. Make sure you research what's actually being paid for them and not just Buy-It-Now auctions.