Who said anything about recommending particular brands? I said generic. If the dealers providers of amps, transports, TT etc.. convey to the dealer hey such and such cord or interconnect , isolation device works great with our product I am sure the dealer would be more than happy to sell them in his store . This is simple marketing 101 to create relationships, assuming of course the manufacturer believes these added devices actually work. Here a simple example, say the maker of my amp, micromega advises their dealers that for example Audioquest products work great with our amps then unless the dealer is a moron they are going to tell potental buyers, you know micromega recommends AQ products with their amps and will for sure start carring AQ if they don't already. Nothing I keep reading here makes any sense from a marketing standpoint on thus reluctance of manufacturers recommending products that their suppliers and dealers could also sell IF THEY WORK. Now if they DON'T think they make a difference then I can see the downside of recommending something. Good lord GE not only recommended Finish dishwashing detergent with my new dishwaher they gave me free samples with it. I guess with the knowledge they were going to alienate loyal Cascade users.