The great thing about Southwest going to Vegas is that you can connect to pretty much anywhere out west through there. SWA has flights to San Francisco and Oakland, all four major LA area airports, San Diego, Sacramento, Portland, Seattle, Reno, etc. For those of us who prefer SWA over other airlines, this is ideal. I hate having to fly east to go west when I go to northern California, but will do it if the price is right vs other carriers. After 9/29, I won't have to do that anymore. I have flown through Vegas on SWA when I've driven to Kansas City or Omaha for a flight and it's always worked out pretty well. If I were to guess what may be added next from DSM, I would say in 2014 they might consider direct flights to Love Field in Dallas.