Drat!
I've just bought a new laptop since the old one died. First thing that I did was to upgrade it from MS Win 8 to Linux Mint - works very nicely, although I'm not keen on HP ImagePad (no mouse buttons).
It came with a 1 year MS Office 365 - which is a waste of money unless I can find someone to give it to.
I've been using GUIs on Unix/Linux for 30 years, all MS Windows on new machines just replaced.
One worry that I have is legal restrictions that may come in as a result of TiSA/TPP that might make it harder for FLOSS.
I am also worried as to what MS may do in a year or two - by which time it will have almost all Windows machines being upgraded in a way that it never has before (the important ones being PCs owned by home users). I can see it introducing changes to protocols and things like .docx files (under false guise of security/... reasons) - which will not be properly documented; so LibreOffice, etc, will be playing catch up even more and MS will be shouting that Open Source software is no good - while pretending that it has not planned this all along.