SA has a chance to get this right now having the arena downtown. I was baffled by how much people were misinformed ("this will be the 4th [or 5th] arena built for the Spurs", thinking we're voting for all of PM, Alamodome a financial loss, etc). Prop A was what tilted it for me, personally. There is a much bigger national problem with sports leagues wanting new arenas/stadiums without real plans for the abandoned venue. You don't get another one 30 years from now.
On a simpler note, I hope it looks cool