Not sure if this is allowed - if not mods please feel free to delete. Over at tug2.net, there is a very active discussion regarding the change in Marriott Timeshare from a week based to a points system. As a flyertalker and owner at MVCI, I see value in the new system but most (all) of the timeshare owners see this is a big negative. Not saying the changes are best for the owners, but certainly value can be derived.
http://www.tugbbs.com/forums/showthread.php?t=124194