If they are a Gibson fan, at least make sure they visit the Gibson Store out near the Opryland Hotel.
..only if you want them disgusted. It's in the Opry Mills Mall and I've been there several times in recent years, and most times they have less than ten Gibson/Epi basses AT ALL, and of those, finding one that doesn't make a Guitar Center setup seem expert or the instrument not all cheesed-over with dead strings from the mall wankers is impossible. There are also several Tobias and used basses in equally poor condition.
They did have a couple of cool T-Birds the last time I was in there, but they are priced on the old retail model of pre-internet days, and for the money they were asking and the condition of the instruments, the price was inexcusable, especially when there are literally hundreds of Les Paul guitars in there immaculately maintained with fresh strings and decent setups. FWIW, the coolest bass I've ever seen in there was the Epi Les Paul signature model (can't remember whose) with a maple fingerboard, but that was three years ago.
The only good thing I have to say about the store is that the mandolin/banjo factory is next door and there are plexiglass windows for viewing.
