I am a dealer, and enjoy commenting about products I sell because they are the products I believe in. If I don't believe in it, I will not sell it.
I also try to lend knowledge I have gained when possible, even if it is regarding a product I don't sell. Much of what I have learned in the high end was from friends, or people just giving advice without expectation. Before I became a dealer I enjoyed frequenting a shop while in college that let me listen for hours on end to systems they knew I could not afford at the time. This was very helpful in my development as an audiophile and I have chosen many of the lines I represent based on my experienced there.
It is all about people helping people dealer or not, and anyone who thinks they know it all is simply limiting themselves long term.
My lines are as follows for the information of the group:
Arcici, ASC tube traps, Bel Canto, Black Diamond Racing, Dynaudio, Furutech,L'art du son, Marantz, MIT cables, Muse, Oppo digital, Plinius, PS Audio, Stillpoints, Thiel Audio, Vibrapods and a few others.
If I can help anyone feel free to contact me for product or friendly advice.