I have ran across this multiple times when trying to use Cash+Points, when booking at an Actual Marriott Marque Hotel wich not allow Cash+Points but yet there's plenty of availability is using only points or just cash???? Kinda defeating the purpose here Mr Marriott business..
Second at certain times when using the Cash+Points the rate is completely different if you booked only cash compared to combining Cash+Points...
So Mr Marriott Business I guess this is called sticking it to your elite customer base to squeeze all the cash you can from everyone!!!!
Interesting stuff... Can you point out an example of the pricing you're talking about? I've never used the Points and Cash option, but have looked a couple of times. Both seemed to feature consistent pricing with a regular stay. If this has changed, it would be good to know.
I love Marriott, but I've noticed this one as well. I was looking at multiple hotels in the Las Vegas area, and I tried various dates for the cash and points options and most times it said "cash and points rate not available". I ended up booking a hotel on points only, so I was disappointed in this feature.