I think many have a false impression of how many parking spaces these lots hold.
Here's a rough guess: Please correct me if you know better.
Scarlet - 900
Green - 500
White - 250
Yellow - 700
Blue - 1500
Purple - 1500
Black - ?
Tan - ?
Lt Blue - ?
Silver ?
It takes a real commitment to get one of the 4000 odd spaces in the most desirable lots.
Now remember that the way it works every new vehicle in a lot pushes someone else out. This causes a trickle-down effect that can cause over half of a lots inhabitants to be pushed down to the next in a given year (like this one).
This is the first year afaik that we have seen R Fund donors assigned parking at the RAC.
The aesthetics around the light-blue will improve once the new chemistry building is done. But once the new engineering building project begins, the current purple lot will effectively go away. That's going to upset a lot of football fans. New premium parking lots need to be found and developed. Once people get pushed out to the point where their parking assignment is no longer "premium", they will stop donating (above what their tickets require).
In the physical master plan there is a ton of parking all around the perimeter of Busch campus. Some / most of that is where buildings stand today. There needs to be a reasonable plan to provide the needed premium parking (to encourage donating) while this long-term transition is underway.
The Scarlet lot is easy since the spaces are painted; you can just count on a satellite photo. There are about 650 spaces in the Scarlet lot.
I also think you are over estimating the other lots. Green is much smaller than Scarlet. And there is no way that Blue is more than twice the size of Yellow.
I think more reasonable estimates are
Scarlet 650
Green 350
White 200
Yellow 800
Blue 1000
Purple 1000
If the lots are smaller than your estimate, that makes the trickle-down effect of additional cars looking for premium lots even more severe.