Some XP machines are just as new, if not newer than a lot of the Vista machines. Home machines tended to get more of the "Shiny" stuff (Including Vista) than the business machines, which stuck with the tried and true Windows XP after Vista was released.

AMD serves a very valuable purpose. Without them, what do you think would keep the prices of Intel CPUs down. The AM3 architecture is dated, and the last two new PCs I built are Intel machines. But, if AM4 is a good socket, I'll gladly go back to the red camp....