How corporate American should use the subscription model

After the initial subscription craze and getting all the subscriptions to fill my house with too many boxes and things I don't need (yes, I know I can trade), I really think that the key now is in really filling the gap for the stuff that people will actually use.

For example,  Keurig, with a million different flavors of coffee, tea, ice, hot and others - except most people don't know that.  It would be beneficial if they have a subscription to help existing Keurig users discover new flavors and make them never want to switch machines.  These days, for coffee I prefer my Nespresso machines, and I was about to chuck my Keurig machine for good - until one day... I discover their vitamin burst cold drinks (think vitamin water).  I didn't know they had that until I ran into a Keurig truck one day.

Too many people I know will buy the same flavors months after month,  thus a discovery of all that Keurig has to offer is important for customer retention. And yes, I would even pay a small fee for this discovery.