I just read over my renewal for Hyatt's Diamond Elite (same as Platinum). In an enhancement to the program they included one guaranteed suite upgrade and the opportunity to have it happen, based on availability at check-in, 4 times in a calendar year. I have not tried to use the cert yet but will post when I do.
Competition being what it is I think Marriott could also include a limited number of suite upgrades per year for Platinum Premier and Platinum members. Comments?
In the day Platinum members were automatically preassigned rooms by hotels--I, for example, had the same room 90% of the time (top floor, corner on the Concierge Floor) without asking. This was because they put a note in my profile blocking that room whenever possible. Back then I also stayed at the "over per diem" government rate, which was not that bad a deal.
Yes I hope Marriott can see that Platinum and Platinum Premier members do indeed deserve a break and an upgrade from time to time without having to beg!