I absolutely agree. How much guests spend depending on the level of lodging is certainly a very complicated issue.
For instance, my family basically always stays at Deluxes, but we have only done one 'add-on', the
MNSSHP.
I have seen many posters say they will stay a value and do every possible add-on, VIP tour, signature dining experience, tour from Walt Disney himself event offered!!! (which is certainly their choice)
Once the numbers are run, I am very interested to see where the next money making wave comes from. (It seems from anecdotal evidence and experience guests purchase much less merchandise than they used to)