The bid came in last night at $358,500. How much further will it go from here? I feel like the book is valued at around $500,000 to $550,000, so that would be my ceiling. Thing is, with books like this it's all just uncharted territory. Maybe the optimists at the CGC Forum will finally be right about a book and this will do $750,000? I'd love to see it.

Here's the top five right now:

1 Detective Comics #1 CGC 8.0 Heritage $358,500 (and counting)

2 Marvel Comics #1 CGC 9.0 Pay Copy Private Sale $350,000

2 Flash Comics #1 CGC 9.6 Church Private Sale $350,000

4 Action Comics #1 CGC 6.0 March 13, 2009 Comic Connect $317,200

5 Batman #1 CGC 9.0 late 2007 ComicLink $280,000

Check out the full list record comic book sale.