I have a baseline expected cost for passive entertainment at probably about $2-3/hour and judge things based on that whether to keep it when I see the charge show up on my bill.

Some services I have kept for years, others I've started/cancelled several times, many I get some enjoyment from and then move on.

If you aren't afraid to cancel things, and don't sign up for things you can't cancel, I think it's a fairly efficient system that can align your money and time.