1) System stability. If your video driver dies on XP, hello crash. On Win7 you see your screen go blank for about a 1/4 of a second and then redraws itself, back in business.
2) If you work remotely, RDP is way better. I've even streamed video over RDP and forgot that I was streaming it from a remotely located computer.
3) If using SSDs Win7 will have better perf and longer lifetime.
4) Virtual folders.
But I would say that if your machines are completely locked down, for example all XP machines are not on the internet, just some closed internal network, then I think XP might be doable. Once you touch the internet though, all bets off.
2) If you work remotely, RDP is way better. I've even streamed video over RDP and forgot that I was streaming it from a remotely located computer.
3) If using SSDs Win7 will have better perf and longer lifetime.
4) Virtual folders.
But I would say that if your machines are completely locked down, for example all XP machines are not on the internet, just some closed internal network, then I think XP might be doable. Once you touch the internet though, all bets off.