Was looking for this thread to add that some domestic flights I have been monitoring MC miles have increased, combined with a slightly lower BE option now for the same routes.

Seeing higher fees to MC than before as well $35-$40 o/w now as opposed to $25-$30. My favorite is the $600+ BE fares from PHX to secondary cities like JAX/ALB/SYR etc that I have seen lately for some flights that I may take.