So.....
You want to be stuck with the same OS for 20 years? I guess you have a CRT TV instead of a flat screen or an old [regular] phone instead of a smartphone then?
XP is antiquated. It is unsecure [compared to Win 7 and even Vista]. It is stuck [primarily] at 32-bit. It can't handle much more than 3GB of RAM while applications [not just Microsoft's] are getting bigger. A typical XP machine with 1GB of RAM is getting sluggish.
There is a simple registry fix [unsure if you can turn it off in a GUI] for Win 8 to turn off the metro interface. I will probably be doing that once I do use Win 8. It took me a while to flip from the "classic" Windows 2000 era interface in Win XP to XP's "newer" interface.