You cannot easily measure the resentment. Or the rage clicks when they smash a button to dismiss another “did you know” pop-up. You cannot easily chart the moment a user thinks, “I used to like this product, and now it feels needy.” You cannot easily quantify the slow erosion of trust.
The problem was never how many things you own. The problem is that owning means something it never used to. Everything you buy is the beginning of a relationship you'll be maintaining until one of you dies or gets discontinued.