I live in the middle of nowhere Kentucky so I don't have the luxury of any local dealers so if I want certain brands I have to talk with dealers over the phone and via e-mail.
Not too far away in Louisville, KY there is a Home Based dealer that always treated me well and helped me quite a bit. Norvel at Music Images of Kentucky. I have bought a bunch of gear from him over the years and would recommend that anyone in Louisville looking for a dealer should look him up.
But when it comes to dealing with dealers who do online sales, I would recommend Walter at Underwood HiFi. Great guy who I have worked with many times. He will give you a great deal on great products and even tho you can't audition what he sells his recommendations for me have been spot on.
One dealer I can not say enough good things about is Larry at Hollywood Sound in Hollywood Florida. He really went out of his way to make a deal work out. He is very intelligent, understanding, and considerate. He has always been honest and his prices fair. Highly recommend this dealer, especially if you live in the Hollywood, Florida Area.
I have also delt with Don from Don Better Audio, very informative and easy going, had no problem spending the time talking with me about a product I was interested in and eventually purchased.
I have also had good experiences with Galen Carol, he took very good care of me.