Bought some RAM to update my imac. Mainly so I can run applications in windows in a VirtualBox window. And by applications I mean games. Mostly they're from like ten years ago so running in a VM isn't much of a stretch.
I have BootCamp for the same thing but rebooting is such a PITA. Especially since I usually just put the computer to sleep instead of turning it off. That way I can just sit down and surf for porn work on my computer right away.