I was running XP as my daily driver up until 2015. I bought a computer from a friend in 2006, an Athlon XP 2500+ machine, and used it every day. That's quite some time without a part failure! I used it as a gaming machine too, if you can imagine. It got me through high school and college. It was retired and a number of months ago was resurrected as a Windows 98SE machine complete with SSD, a new power supply (why tempt fate?) and KernelEx. I even made a post on Facebook with it!
Just a few days ago I finished my vintage XP gaming rig. Intel Pentium Extreme Edition 965, Nvidia Geforce 9800gt, 4 gigs of RAM, and (of course) an SSD. Blame that guy Druaga 1 on youtube for all the SSD hoopla. It is a great rig. I am going to make a new thread about it in a minute about dual booting with Windows 2000. I hope that I can throw 2000 on a separate hard drive rather than wipe XP and start with 2000. Look for the thread if you want to chime in!
XP was a grand lady, but 98SE has always been the gal for me...