I would hope the high end audio salesmen are a lot better than car salesmen. I've been to Tweeter and they are car salesmen. Be honest and up front. I good dealer should be more interested in developing a customer than making a quick sale. I cup of coffee and some donuts goes a long way with most dealers (atkins diet - slab of red meat and a hunk of cheese). Most dealers can tell the tire kickers from the serious buyers in about 30 seconds.
Example: I made an appointment with a dealer to audition som soliliquy speakers last week. I told him that I had no intention of buying when I made the appointment and that I was just helping a friend. He told me he didn't mind and he had the entire afternoon available. I walked in and the dealer was polite and answered my questions. We had some lite conversation while I was auditioning. He didn't try to sell me anything. 90 minutes later he was loading the complete Von Schweikert VR4jr theater package in the back of the SUV.
Example: I made an appointment with a dealer to audition som soliliquy speakers last week. I told him that I had no intention of buying when I made the appointment and that I was just helping a friend. He told me he didn't mind and he had the entire afternoon available. I walked in and the dealer was polite and answered my questions. We had some lite conversation while I was auditioning. He didn't try to sell me anything. 90 minutes later he was loading the complete Von Schweikert VR4jr theater package in the back of the SUV.