Excellent points! As a Bills fan, I would love to see an owner who has one goal, only... to win the Super Bowl, of course.
But, as a business person, if I could take $25,000, and 50 years later, turn it into over $900,000,000 !??!?!?! (NOT to mention, all the fun along the way...) Well, you're right. He's proven to be an excellent biz owner. How could anyone argue that? He gets the county/region to kick in their part, he likely has near zero debt (relatively speaking), and he has sold-out crowds. His coaching staff and Front office are likely near the bottom of the league in payroll... etc.
Yes, I'm sure there are a lot of owners who envy him!
FORBES' Bills Valuatioin