[slgeorge]

It's tough to make that argument.

Features are only a small part of how users consider change - and 'parity' definitely doesn't cut it.

Office is a good example ...

StarOffice originally and then RedHat, Suse, Mandriva (and the previous versions), Canonical and a host of other commercial Linux vendors I'm forgetting, plus Sun, IBM, Linux Foundation, etc have all put resources into competing.

OpenOffice is feature equal for most users - but, it didn't make much of a dent.

For me the Windows 10 situation is partially about competition, but it's mostly about protecting their core market. For the most part they make money from corporate users, not users buying 300 dollar laptops - those are just market capture for the serious money. Any time you hear a parent say "Jonnie is learning MS Office" (not word processing) that's a future corporate buyer.