They'll port some games and leave out a bunch of other great ones. It's extremely annoying. I consider Steam like the candy isle next to the register at stores--if the games are they're, people will buy them.
The "10% rule", as I usually call it, tends to be consistently true across a lot of different software, and as you said that's not even referred to total sales but usually just to averaging daily activity.
I mentioned it several times in the past .
Pretty much, but I doubt that even MGSV will make it in time. This will be released 1 or 2 years after the console versions and I hope they dont fuck it up just like Rising. FF15 is pretty much impossible. I can't see SE porting this to PC at their current state.