AUS only continues to grow; it has a TON of space, tons of gates, CAT 3 ILS approaches that DAL and HOU do NOT have, lots of international connection options to Europe and Latin America. It has the highest RON amount of any non-base.

Yeah it would be weird having three Texas bases, but HOU and DAL are capped out, DFW and IAH are not options at the moment, so connecting passengers to AUS then flying them to where they want to go makes the most sense to me.