Interesting! I just happened to be listening to the new KVGQ when I wrote that post yesterday. Good station, but seriously why all the simulcasting? I can't even be sure you can just flip over to 99.3 once you lose 106.9 out of Vegas, and there's certainly no way to hit Honolulu.
There's no overlap.. not a chance.. have you looked at 106.9 and 99.3''s coverage area? It's way E/NE of Phoenix and you lose 106.9 before you even get to the state line.
Why?
Because they can, and a cheap way to operate.