$250? Got OEM from newegg for $160. never use it much, XP is faster for games and ubuntu runs fine for my every day usage (work e-mail, office docs, internet browsing online video playback)
Games are the main reason for XP usage outside of businesses, I get well over 100fps with full settings on many games, the same games on 7 Ultimate with the same settings don't go above 40fps most of the time (some are capped at 8-10fps) and there are numerous video/audio glitches i come across that i don't get on XP (color glitching, black/blanking screens during auto-saves/quick-save,having to hack audio drivers to get stereo down-mix or half won't even have audio, and it's just plain slower)
I have used it for gaming only to see the difference between DX9 and DX10/11 and i don't see any and it's slower so i only keep it around just for testing now.
(Core i7 920/6GB/NV GTX 275.)
And still no Cisco IPsec VPN client support in 7 so i can't even use it to work at home. Both my work laptops, 2 netbooks, and 6 desktops run XP PRO. (and ubuntu) and we are just now evaluating 7 for deployment and are already racking up quote$ for hardware upgrades and still have 10% of our systems that barely run XP at all. (that will be over 70% if we were using 7 without Ram upgrades/hundreds of desktop/laptop replacements.)
XP will be around for a while until MS comes to their senses and stop trying to make 3D pretty interfaces that don't work and get serious on optimizing the core OS more. (quit experimenting with the damn metro tablet interface and just make the OS more stable run better and quit moving everything around for no damn reason.)