Glenn Dickey has an interesting hit on the 49ers stadium problem: The hell with it, he says; let 'em go.
I still like the idea of a San Francisco football team, but then, I also like Candlestick Park, and I always have. I even liked it when the Giants played there. But I have to say, Dickey's got the economics right. He's horribly harsh about the neighborhood ("There's nothing at Candlestick Park; Hunters Point ... is no better.") That's not true -- and in theory, if the city could find land at the shipyard, the presence of the stadium would spur local restaurants, bars etc. But in practice, it probably won't: Most football fans don't contribute much to local business. They pack in food, tailgate and then split.
The downtown Giants stadium did wonders for either economic revitalization or gentrification, depending on how you define it. The niner games at Candlestick have done nothing for Third Street. From that perspective, a new niners stadium would be a waste of public money.