So today I had the choice to fly PHL-BOS on either UAL (codeshare) or SWA. In the past, I wouldn't have thought twice about it. I am a 1K by segments this year---will end up with 109 total. When I looked at the choices, the SWA ticket was 80 bucks cheaper and changeable. The UAL ticket on USAir didn't recognize my 1k status, no priority seat selection and was more expensive with a change fee.

I can't see trying to do 20+ more segments this year and paying for more expensive and restrictive tickets. I need to do 18 roundtrips on SWA to get their priority boarding--that will be good enough for me.