Sacramento has the advantage of no MLB and no NFL to compete against. Yet it wouldn't surprise me to see San Diego shoot to the top of the list very quickly. Look how far Cincinnati came in one year.
Why the suburbs for Detroit? I work with some folks in the incubator business and they tell me Detroit is eating everyone's lunch. The number of things that emerge out of Detroit in the next decade may make people's heads spin.
Hopefully that becomes a trend. Public funds for stadium construction is a scam that needs to be stopped.