Table top gaming is probably not going to survive without some degree of monetization. So much of the itch that table top gaming used to scratch is available now from a superior computer based platform, so that a lot of concepts that used to be big are hardly ever played any more because its better to let the computer handle the book keeping.
The biggest problem that table top gaming has always had is that GMing a game is hard and takes a lot of work. Not everyone has to skill and talent to do it well. Not everyone has the time to do it well, and at some point it can come to feel like a really thankless job.
Monetization of an activity is a way to preserve it. Monetizing things is all about sustainability.
A space to play that is convenient for everyone is a thing that has value. I've been really lucky in that so far, but if I lost my current space it would probably be worth it to think about paying for a space in some fashion (either building a space at home or renting a space from someone).
Likewise, I think that professional GMs are a thing that has value because GMing is a thing that has value. The two things overlap. It's entirely possible that a really successful play space would be willing to pay workers (initially say at a minimum wage) to run tables so as to increase the number of people paying for a space and attract people to it. If that is financially viable, then those workers will eventually gain economic leverage to start demanding more premium wages.
At one time I would have thought this impossible, but the growing success of D&D podcasts where people watch D&D being played suggests there is more demand than I would have believed.