PremEx ~ Well, just make four PL stays of one night each after Oct. 15 and before your Diamond promo ends ... worst case, you only earn two free nights, which are easily worth the less than $200 that would cost you (just make sure to charge something to your room, say a $1.00 phone call, during each stay and pay for it with a MasterCard). Best case, you get the two free nights and Diamond status.

Actually, since you already have one stay year to date, if you stay four more you'll earn Platinum status in GP (not that it's worth much, but it is something) after four more stays even if you don't get Diamond.