Do we have to be realistic? I'll assume not, so...
A full variety of rental high level blades, so you can try different types...
There are maybe 3 - 10 really, really good skate technicians in the world, that people travel hundreds of miles or more to visit, and overnight ship their skates to for sharpening. For many people, those are the dream shops. Get one of those people.
A really first class podiatrist on site, who specializes in skaters. There are only a few of those in the world too.
Also, the companies that make custom boots are really dream places for many people to visit for fittings. How about scheduled visits by first class factory approved fitters?
Definitely an ice rink right there, so the tech can watch you try to skate on their blades, with all-day public sessions and well maintained ice. At the very least, enough surface to try out your skates and blades - say 5' x 25'.
Oh, and can I get a job there?