Recently, I had to stay at the Marriott on the campus of Mayo Clinic in Phoenix. My question is why aren't the rates for patients who are staying for the purpose of going to Mayo Clinic the best rates Marriott has to offer? When I stayed this time and it was for 10 days, the senior rate was less than the Mayo rate and another time the AAA rate was less than the Mayo rate. I would suggest that if a guest is staying for the reason to have surgery or see a doctor at the Mayo clinic, the best rate should be a Mayo rate, even if the guest has to show some proof of their appts. at Mayo.