All the components we build are word of mouth because we cater to a unique audiophile whose only concern is the best sound. When we started, I was politely introduced to marketing - the reviews are not free. It is very political also. Many of the products today are distributed by brick & mortar dealers. Many brands have protected territories like Vandersteen, B&W, etc. So shops marketed what they could get. That has changed some where even PS Audio has now gone direct. I spoke in length with VPI about this and they seems to imply that if they started today, they would also probably sell direct.
It is not easy to get your product to the market the old fashion way. Very few dealers will take on a new company. Who wants to take the chance to carry a product that may not be there a few years down the line. A dealer also wants to show things that look very nice. Aesthetic appeal is important.
When we looked to partner with a speaker company and started researching them, we found so many speaker companies that don't even have representation in the US, but they were fantastic sounding speakers. I mean a hundred speaker manufacturers. Ascendo was a speaker manufacturer that I liked. They have been in the US with mostly in-home dealers. When I contacted them, they seemed not be that interested and recommended another manufacturer that they liked for me to contact. I found that very interesting.
So there are many factors for success and falling by the wayside. Mostly money, distribution network and aesthetic appeal.
Happy Listening,