I still have an original IBM PC/XT, pretty well decked out with an EGA card driving an IBM CGA monitor. Nice collectible system but I should probably sell it. It's historically significant and fun to play with but it takes up too much space and it isn't all THAT unique compared to modern PCs. I have other vintage computers in my collection that are far more interesting to me, Amiga, a few old 68k Macs, Sun workstations, and some FPGA based retro systems.