This is the first issue of Action Comics, and it's worth $600,000.

You might think $600,000 is a lot of money ...

But that's only because you haven't met the MOST expensive comic book at the Con:

Hey, can I borrow $500K? Pretty please!
Honestly, I blacked out when they removed it from the case.
In 2011, Nicolas Cage bought a copy of this comic for $2 million. So, really, $600K is kind of a steal! It's considered to be the most valuable comic of all time, because it's the first appearance of Superman.
It's a bird, it's a plane, it's A RARE COLLECTIBLE!
Sure, it's only $60K more, but that still counts!
This copy of Detective Comics, issue number 27, features the very first appearance of Batman. A copy of it sold for over a million in 2010. So, again, this is kind of a steal, you guys.