Ha. I've bought more than one copy, too. I bought the PS2 version first, had a mental orgasm, then purchased the PC version to oggle the game in all its prettines.
I'm also in the process of buying the flight helmet for my halloween costume; that of which I've already sunk ~$55 into. Ah, expendable income. And youth. Both things I don't plan on giving up anytime soon.
I suppose you can count the new PS2 controller that had to be purchased due to the Meat Circus.