Right, I've been concerned about the same thing. I can make roughly $1k/mo from every extra 100k pageviews/mo, and I have a lot of room for traffic growth, so I'm focusing on that right now. But eventually I'll hit a ceiling beyond which it's hard to grow traffic, and I'll have to find out what to do from there. Hopefully that won't be before I can pay my rent etc from the revenue!
I'm going to be writing about all my decision-making in a lot more detail on the blog pretty soon (https://IndieHackers.com/blog). Indie Hackers is all about transparency, after all.
RemoteBase is cool, btw! I'd love to feature you on Indie Hackers this week if you're interested.