There isn't much of a scene for salsa in AZ. In Tucson there were only two clubs 'Irene's' and 'El Parador'. Once I moved out here to CO I found I could easily go every night (seriously). It's big enough where there is a lot of variety in dancers, but small enough you get to know everyone. I love it.
I have a large group of friends in LA, so I visit them fairly often to push myself. Even the best dancers here in the Denver area don't compare to people I've seen at Steven's or Sportmen's in LA.