The donation theory is news to me and doesn't really make any sense. Have the same question as writetorich -- why would Choice, IHG and Hilton donate so many points when Hyatt gets the same exposure with a handful of packages?

In any case, I got very lucky with the IHG sale today. Immediately grabbed 5 packages of 100k, 4 packages of 50k, and 5 packages of 25k. After finalizing payment on the 100k and 50k packages, moved on to the 25k packages on my phone, and it froze. Clicked again on my desktop, and immediately managed to grab 5x 25k again, and succeeded with payment. So 825k points total, not a bad haul! Looking forward to another couple dozen nights with discounts of 50-70% vs cash rates!