Considering how happy my life is now, and how often you see the Technical Founder get pushed out of his own company in place of a board-approved CTO, I don't imagine it would have left me net happier.
Best case might have been an acquihire, a few years couching it out waiting to vest at a big company, then a medium sized payday. Actual case was a (different) bootstrapped product and a bit of consulting that was a lot more fun and left me in a similar spot financially, 10 years later.
Anything less than best case, I'd be responding to the actual question posed here today.