With $100 million, I'd buy just straight up gold.
But let's make things interesting...
If that wasn't an option, I'd buy stocks in Apple, since they just got cheaper.
But lets make things more interesting...
If that wasn't an option I'd buy a DeLorean like the one in back to the future...screw it, I'll buy THE DeLorean used in the movie.
Secondly I'd buy a ton of cards. I'd buy bricks upon bricks of White Cents., Black Bee Stingers, Jerry's, and Brown Wynns.
Thirdly, I would buy autographs. I'd get a 1927 Yankees signed team ball, an autographed team ball from every "World Series" and All-Star game ball, and I'd get an autograph of my favorite player if all time; Kirby Puckett.
I would buy Phillies full season tickets. Right now I only have partial season tickets but with this, I'd get the full seaon, plus post season tickets.
Speaking of tickets, I would buy other types of tickets. I would get back-stage passes to see Penn & Teller, ELO, Paul McCartney, Ringo Starr, The Fratellis, "Weird Al", U2, Coldplay and much much more. Now I know what you're thinking; ELO doesn't perform any more. I have $100 million though. It'd be hard for them to refuse. Actually forget the tickets, they will preform at my house in my room.
I'd buy memorabilia from all my favorite celebrities. A suit Elvis wore? Why not? Michael Jackson's glove? Of course! A copy of "The White Album" signed by all The Beatles? That'd be nice. A concept drawing of Mickey Mouse? I think you see my point.
Lastly, I'd go to an Apple store. I would build the best and fastest freaking computer you've ever seen, and I'd get all the bells and whistles too. I'd also buy like 50 iPads, 100 iPods, $500 headphones, and some iPhones (All at maximum capacity of course).
And um... I'd go sky-diving.
That is what I would do with $100 million dollars.