How much is it worth?

How much is my issue of Identity crisis #1 worth which is signed by Michael Turner? This copy also has a certificate of authenticity to say that it is number 778 of 999? I'm thinking of selling it so i just wanted to know if it is worth much or not? Thanks :)

maybe you should search on ebay and see how much it is going for

Anything is worth what someone wants to pay. Signed comics aren't necessarily more valuable, since the signature ruins the book itself. And being a relatively new book...Well, don't plan on financing college with it.

@Glitch_Spawn: That's not collection, that's investing. And buying current comics for investment is not the brightest idea. Prices are high on older books because there are much fewer of them. How many copies of the comic in question are out there? Even signed, I doubt the market would offer too much for it.