Elvis Has Left The Building, But My Uncle's Still There

I was down in Mobile, AL, for my sister's wedding over the weekend, and got the chance to reconnect with a lot of family. Among them, my uncle Mott from Memphis. Turns out that Mott, a 75 year old retired banker, recently embarked on a new career. As a tour guide at Graceland! He says it's a great gig, but that alas, even Graceland employees aren't allowed upstairs. What goes on up there anyway?