[webwright]

“So after a much-needed vacation, the retirement is canceled and they’re back to start a new company. (Not always with as much passion as the first time around, but that’s another story).”

But sometimes with twice the passion as the first time around. You should only "rush to get out" if you've got something that you're really passionate about to look forward to. I don't know virtually ANY entrepreneurs who envision a life of pure leisure if/when they cash out. I personally have 2 or 3 companies/non-profits I'd LOVE to start and there are probably a few (generally young) that I'd even take a job at, assuming that I'd have enough autonomy to do cool stuff.