It would be nice to have the ability to gain Lifetime Platinum Status (or create another tier e.g. DIAMOND LEVEL) with a certain number of stays or nights. I think somewhere in the neighborhood of 250 Stays &/or 500 Nights. This would average out to someone needing to be at the Platinum level for a 10 year period. As of now, I don't believe any other hotel loyalty program offers this, so you would be the leaders/first mover and then other would be followers if in fact they decided to offer something similar.
