I don't earn anywhere near as many as some on here. I don't play the credit card game, why jeopardize a credit score for a few airline points of depreciating value? I stick with Chase Preferred and can use those rewards on virtually any airline, not just the one on front of a card.
I now burn airline miles as soon as I earn them. been caught out too many times hoarding them when a devaluation comes along....my current situation with WN! I earned a 150K points on WN last year and now trying to burn them as fast as possible.