Sort of in your same boat with DL; although don't belive their demise is imminent. Actually if I were on the East Coast I would have thought US Air was a good program. DL has completed decimated their frequent flyer program; CO apparently has a good program, but went with DL on their lower fares. I'm going to stick with DL and fly NW a lot this year just to see how it goes; over 200k MQM this year on DL. Look at all of these forums and Randy Peterson also has really good comparisons. Good luck & happy flying!