Startup 1: $0 Startup 2: $0 Startup 3: $3,000,000 Startup 4: $0 That's over the course of 25 years, with a few stints at non-startups as well.
As someone from humble origins, it surprises me more people don't live frugally 5-10 years in the Bay then retire in luxury somewhere with lower cost of living.