Generally, the value proposition of subscriptions for publishers is the lack of friction for a lot of people.
You’re managing your expenses tightly, which is smart, but I think that’s not as common as you expect. A lot of people might hear about a cool game coming to Game Pass in two months, and for simplicity just decide not to unsubscribe even though they’re not playing it for the next month.
People also make theories that everyone uses the XBLGold promotion trick, but I also think that’s not so common.