I sell everything I don't use.
I have a Hackintosh running OSX and Win 7 (via Parallels),
a Pmac running MorphOS,
Two Intel Atom netbooks,
An Atari 130XE with a Hitachi 63B09E processor,
and a Color Computer 3 (also using the above processor).
I've considered buying an Amiga 4000 or 1200, but AmigaForever seems adequate for whatever MorphOS won't run
Oh, and I guess if you count game machines - an Atari 7800, Sega Genesis, Sega 64, Sega Dreamcast, and a Nintendo Wii