The Infinity Gauntlet by Jim Starlin, George Perez and Ron Lim is currently the number one best selling graphic novel on Amazon.com.

I wonder why?

On eBay, Thanos' first appearance in Iron Man #55 at CGC 9.4 has just sold for $2550, a massive increase on only a three months ago, it sold for $300.

A concept piece of art by Jim Starlin for Thanos before his first appearance just sold for $2200 after massive interest.

Marvel will be publishing both a Essential Captain Marvel, Vol. 2 and Essential Warlock featuring Thanos' appearances from Jim Starlin, so I think they are aware of the uptick in interest.

I think we should expect some sort of Thanos Omnibus very soon.

But if you have a comic with Thanos in it, this could be a good time to sell.