With a very, very few exceptions, I think "people don't want to run their own servers and never will" is true. They don't want to run servers, but they will run a server if the only way to get what they want is to run a server.

There are always a few people who want to run a server and it's not just a means to an end. But they are so incredibly few they aren't worth taking into consideration.

Put another way: All else being equal, if you give someone a choice to run a server or not, they won't.