Vicki, I understand the dilemma, but either there is a platinum guarantee or there isn't. If I was the hotel operator in the instance that you postulate, I would assume a 5-10% no show rate for the convention. Almost every convention room block that I have encountered disappears as one gets real close to the dates. Also, IIRC, the platinum guarantee is for a high rack rate, not the AAA breakfast special rate.

Actually, when I was explaining the platinum exception to my wife, she thought the whole thing was unfair! She was concerned that "big shot" platinums were displacing reservations made by those with no status, possibly disrupting long held vacation plans of a lifetime. It was a little bit like the 99% and the 1% argument.