That's definitely an interesting perspective, but I think steam stats say something a little different, there are hundreds, if not thousands of games that move 100K+ units (and see significant played time from their users) each year. That's a whole bunch of games that a significant number of people fall in love with.

But beyond that, I think you just made the case for those games to sign up for a subscription model! If someone's playing a game, say minecraft, month over month, then that developer is getting paid month after month. In other words, if a game takes over someone's life, it'll almost definitely do better per-user on a subscription platform than on a store front.

By the way, check out Flare: http://www.flaregames.com/flare-accelerator/