[twothreeone]

Less experience overall (5+5 years), but I strongly agree. I think the main reason for this are the incentives, which halvarflake mentioned briefly in his post.. if you can directly affect valuation of your company (which in turn directly drives your own net worth through ISOs/RSUs etc), working hard actually becomes fun and rewarding. Take that away and a 10-3, 4 weekdays, 60+ days vacation, work life balance kind-of-job starts looking a whole lot more appealing in comparison.