Our understanding of whether it is a game varies, too!
However, console games over here get sold for 59-69 euros, and more. And the only subscription PC game I play, The Hunter, already has costed me more money than all SBP and two payware updates together.
Or take iRacing, and other subscription stuff.
Either one is interested in something, or not. If one is interested, and can afford it, one pays it. Else not.
Originally, SBP costed 125 dollars. Then 100 dollars. Currently 75 dollars, that is currently 58 Euros. That is 11 Euros less than a new console game.