Maybe its a nerd thing, but I love my linux box because it can run dos, c64,linux, windows and amiga programs all together. Its like having all the best software from all different systems all on one system, and thats very attractive. Every great amiga game I like, every great old dos game, whatever windows apps I need for work or whatever, all working point and click...
I also recently started tinkering with tandy color computer emulator, before amiga that was my main rig, because my dad worked part time at radio shack and they sold cocos (and crappy tandy 1000's) not c64's...