It also depends on which AI location you stayed at or are looking at, and what other activities you might have done or want to do while at the AI.

For us, it was always just food & drink, and not worth the AI price. We budget $100 per day, and easily go for two weeks non-AI compared to 1 week AI. The numbers are going to drift depending on what property you choose for non-AI as well.

Sorry, I may have just scrambled your puzzle a little more...