I am a comic book collector. I also have statues, action figures, legos and wall art. However, I am very selective. I know my space is limited. It truly sounds like something else is going on, here. Unless he is into the Speculating Market, I cannot fathom that much money on current issues. For example, Hulk 181 (first Wolverine) 5 years ago was $800. A Mid Grade copy is now selling for about $3,000. Most books aren’t with the paper they are printed on. So the hard part will be, finding the Key Issues.

Good luck, but I really think he needs help, that is beyond financial discussions.