The truth is that Norcal would use the heck out of a joint like that. There isn't an arena like that, outside of Oakland, anywhere in Sac, delta, tahoe, stockton, modesto, chico, nevada city,... Big shows would flock, and people would stop having to go all the way to the bay for stuff.
We're talking music acts, church conventions, political conventions, Sports, motocross, monster truck rallies, the whole bit. It would put Sac on the map mostly because lots of stuff that would happen there would be televised. Sac would stop being that place you drove through on the way to... and it would become that one place you saw that awesome...