Ask HN: For those who build a successful side-hustle, what was your next move

I have been running a side-hustle SaaS for the last several years that is finally going to reach mid 6 figures over the next year. I am in a niche so further growth is unlikely. My time commitment is probably 10h a week (weekends). I do have a full-time career as a tech exec with mid 6 figures as well and maybe on the path to low 7 in the next 5 years. I generally love to work and don't plan to stop, I am pretty good at avoiding burn out.

I do have a question for those who build a successful side hustles. Once your business started to generate a more serious money what did you do ? I do understand the general options (take cash, sell, reinvest) but looking for people stories to give me some food for thought.