Arizona is closer to the rest of the AL West than the Astros are. Sure, Arizona would make sense, moving to the AL West. But then you have to move Houston to the NL West anyway. Now you're moving two teams instead of just one. Plus, Houston in the AL West gives them the games against the Rangers, so there is that bonus. Arizona has nothing like that in either divison, nor will they ever unless Vegas gets a team some day. That's not a bonus to me. I don't give a crap about the Rangers. I'm fine with moving to the NL West.