I just bought Audi Care. I plotted out what was included thinking to get prices on each service. They told me the last service at 5 years in the plan was $820 on its own, so I bought. They had priced it at $750 for many years unchanged.
I assume also that shop rates will climb each year.
Not stated outright is that the services are mileage based or one year each, good for me as I will be low annual mileage. I only drove 4500 last year. Retired, you know.... and we have a beater for local stuff and the dogs.
In the end, I know I will be happy for a zero bill each time I go in. Its their way of getting an annual look at the other wear issues obviously, for increased revenue.
Hope that helps.