That's because it's a very rare occurrence. Let's say I take 2 flights this year and each time United is $150 cheaper, should I spend $300 more as insurance tha

That's because it's a very rare occurrence. Let's say I take 2 flights this year and each time United is $150 cheaper, should I spend $300 more as insurance that Delta (or whoever) won't have this happen to them, or that United will do this exact same kind of thing again? I just don't see it happening or being found in that situation. I think the opposite is actually the irrational choice, because you're not taking the probability of such an event occurring into account. I don't have anything against those who boycott, I applaud them, but it's just not me.