As for why use windows, if your only use case was for gaming, I'd agree.
I use Excel to print logbook pages, but I'm guessing I can migrate that over to Calc pretty easily. The guts of the logbook itself was written in ANSI C, so that'll be trivial to get running under Linux. Just gotta build another front end, although what I *should* do is get off my butt and actually write some code so I can print directly without having to dump a .csv into Excel first.
I digress, but it'd be cool to simplify down to Linux and iOS. Maybe my product key stopping working will be the final little push.