I have worked with a hobby shop at one time in my life. It was great fun and I enjoyed it thoroughly up until they went under from several reasons. One was mail order, the other was bad location. I was the airplane guy, and I knew nothing of cars when I went in. But I learned the breands, who made what, what would work with what and I could help with engine and radio problems from airplane experience. But when it came to which was better than what and why, I didn't have a clue. Still don't, but I told the customers that upfront, and refered their questions to the resident car guru who was there full time. Decent employees who are willing to learn are hard to come by I guess because I, too, have seen far too many people misdirected because of dumb employees. Not only at hobby shops but other places where the employees really need to know their stuff but don't.