Here's the analysis that should be performed prior to rejoicing about bringing the NBA back to town:

First, estimate how much revenue (through all channels) the team will bring to the area, specifically to entities other than the team's ownership, each year. Next, multiply that figure (plus inflation) by the number of years it took for Key Arena to go from bring the crown jewel of the NBA to no longer a viable venue. Next, estimate how much money the city will be required to contribute to the cost of the new arena that the NBA will try to racket them into building the next time around, assuming that period of time is similar to the "lifetime" of Key Arena.

Does the revenue outweigh the cost of the next arena? If so, bring 'em in. If not, bring 'em in anyway, but don't bitch and moan next time the team gets purchased by a tycoon from another city that wants a piece of the action.

Remember how you felt when you realized the Sonics were going away? That's how the fans in Sacramento are feeling right now. Why is that OK? Why should we not expect the same racket when the new arena becomes outdated?