How does WoW even remotely have a reason to be subscription based at this point?

We’re literally sitting without content for sometimes over a year and the one time we’re getting a big content drop it’s another paid 40 bucks expansion.What exactly is it what we’re paying monthly for at this point?I mean it’s definitely not the privilege of not having an item shop anymore like we once told ourselves when talking about f2p.Just something I had to think about atm.EDIT: I actually can't keep up with all the comments anymore but I'm happily reading all the discussions this triggered. Glad there are still people that want to hold a dialogue! Thank you guys.