I wonder if it's a good idea to get rid of all Marriott weeks now?
Depends on whether or not existing resale owners will be grandfathered in or not. If not, then you might consider getting rid of your resales. If you will be grandfathered in, it would be foolish to get rid of your resales, because you could only get them back with the same benefits if you repurchased from Marriott at triple the price.
When I decided that I did not like the situation at Streamside, I sold my Aspen unit a few months before their resale value went into the toilet. (The person who bought it has since become a fairly active tugger, and he is actually quite happy with the purchase because of the condition of the unit. I, on the other hand, am happy I sold.) At the time I sold it, I did not know about all of the huge annual fees and special assessments that were coming down the pike, but I sure am glad that I got out of it before they did.
The resale value of the unit is now almost nothing, so I am glad I got out. But it will probably go back up again in a couple of years, and as long as the new owner gets good use out of it in the interim, he really should not care about resale value.
So, should you sell now? It depends on your circumstances, your need for the unit, and what Marriott does with existing resale owners. All are in flux, and anything could happen.