Let me preference this by saying I'm comfortable where I'm at. I have a solid upper middle class job and I can afford to take vacations and travel.
I'm doing much better than I could of ever hopped to when I was growing up.
However, in my mid 30s, something is different. I went from trying to come up with multi-million dollar ideas and cold calling( tweeting/emailing) VCs asking for funding and feedback. Now I'm just content working on small games.
I have another project which is basically a music/lyric video generator in Unity.
I really like the technical aspects of creating a startup, picking a stack and hacking something together. I hate the business side. Idea guys with half-baked ideas who expect free prototypes. I like building stuff with my friends, but actually figuring out how to make money... That's the hard part.
Many of us will hit a point where what we have is enough. If we are lucky enough to hit that point then we will retire or keep doing what needs to be done to maintain that point. Looks like you hit that point. Good for you...