I don't understand why the sale of Mint is regarded as the end to Aaron & co.'s great adventure. They're now free (and funded) to tackle another interesting pro

I don't understand why the sale of Mint is regarded as the end to Aaron & co.'s great adventure. They're now free (and funded) to tackle another interesting problem, and let Intuit handle the inevitably boring business of running an established company. I don't hear anyone criticize pg for selling Viaweb, and that sale was obviously what opened the door to the Y-Combinator experiment (which is much more interesting than running an established company). There's a reason founders leave when the company "makes it", and its not the money.