I also had a similar opinion about XP until I found some HW working fine in 7 but no longer working in XP.
OTOH, my old all-in-one printer/scanner works in XP but no longer in 7 and above.

That seems like a predictable pattern. Old OS struggling to support new HW and new OS no longer bothering with the old. Since XP is dead, you may find yourself more and more in deep water when it comes to supporting new HW so, if you want to continue using Windows, you may find that at some point you will have to upgrade, whether you like it or not.