If you can find a small comic book convention where you can get a dealer's table cheap, it might be fun to get rid of them all that way. You'll sell a few comics to people, have fun talking with everyone, and then one of the other dealers will give you an offer on what's left in bulk. You'll probably break even unless you're sitting on some rares.

Dealer's tables at big conventions are expensive, $500 or so. But something at a smaller con might be $100. Happy Googling.