Wow, I am envious of SPGers here and don't see how anyone with an understanding of using CRM data to drive property revenue could disagree. The program should be designed to upgrade guests within tiers that generate the most revenue, have the most nights, and spend money on high margin items on property. Keep them happy and coming back to spend more. Hilton would be missing a huge opportunity to drive revenue if they did not track customers that spend money on high ticket items like room service, bar tabs, spas, etc. SPG gets this. Unless I am missing something, the HHonors terms and conditions don't even say that a diamond member should be upgraded over a gold. I certainly think as a diamond on spending, nights, and credit card that I should get that upgrade over a credit card gold.