What are some of your oldest/rarest/most value(d) collectible possessions?

-I have 2 Urizen figured signed by McFarlane ~$130 (bought for $20 6 years ago)
-Ultimate Spider-Man #14 in MINT condition
-Ultimate Spider-Man #33 (heard it has a possibility of getting $$$)
-Damn near all CrossGen Comics
-Ultimate X-Men

I don't have anything RIDICULOUS but up there.

One of my college buddies has in mint condition the first appearance of Thor...around $6000

:waiting for some transformer peoples: