All the previous posts think that the health of the frequent flyer program is always linked to the health of the airline. Analogous to switching employers regardless of the health benefits since you think that employer will be around longer. The other aspect that needs to be considered is the gradual loss of the loyalty program through diminished benefits, regardless of the airline's health. We've seen the recent abrupt reduction in benefits at Delta, BA and Radisson Goldpoints. Personally, I got hit with having to come up with 125,000 miles for an AA award that was 100,000 three months ago. Miles or points are a currency subject to devaluation. Choice of airline based on long-term prospects hints of wanting to 'bank' miles for the grandkids when they grow up. If airline choices are available, my philosophy is always geared to what can provide the most benefits for the immediate needs, regardless of the airline's health. Just my $0.02 worth.