This question just came to me while I was buying a subway pass. It’s priced very well, provides a very good service, doesn’t suffer from enshittification, and its price increases very rarely.
What are some other services which people don’t mind subscribing to?
My state has a special state parks license plate with a parking benefit. Free parking at almost every state park. This includes beaches, nature reserves, mountains, hiking areas, skiing areas, etc.
Having the plates on means you just park and go, no kiosks or paper slips, putting money in a box or dealing with someone.
Parking is $5 and up, and the plate is only $40 extra (on top of normal vehicle registration fees), so it can pay for itself many times over the course of a year.