[pdimitar]

I don't have extensive experience with Win8 first-hand, but I've heard from many people that Win10 has a much better backwards compatibility. Practically almost nothing ever broke for people, while conversely Win8 had a lot of complaints.

I can't argue either way though. I as a programmer took the plunge one afternoon around 8 months ago and never looked back. Win10 is superior to Win7 -- my girlfriend's graphical processing software (and part of her games) even started working faster after her upgrade.

All of that is anecdotal of course but strategically speaking, Win10 will be around for much longer.