Well, after much waiting, my Monte Carlo August "Feel Rich" offer has shown up on Mlife today.
It's more like a "Feel Miffed" offer though. Down from 3 nights in a suite with $100 free play to 2 nights in a room with no freeplay.
I know that Fall is busier than Summer, but the offers have been noticeably worse month by month since MyVegas started.
I believe the last 2 offers I used were over generous for my play, but I'd have expected that to have worked itself out immediately rather than over a period of months.
Still, 2 nights free is better than none and I can at least let the board know that some offers for Fall are starting to come in.