Comments per Brand in Discussion Forums

Why is it that some brands attract so much commentary and kudos in the discussion forums, while others get relatively little by comparison?

Consider Wilson, Pass, Atma-Sphere, Dynavector among many others in the former category.

Basis, Van den Hul, Legacy among those in the latter.

Perhaps it is some combination of the following:

1. Relative success of manufacturer marketing efforts

2. Personal charisma of the manufacturer

3. Relative size of dealer network

4. Sheer number of owners of each brand (though how does it get this way?)

5. Some brands attract the kind of customer who is likely to be "loud and proud" on behalf of his purchases, while others attract a customer who is less likely to speak out (and if this is true, then, psychologically, why is it so?)

My belief is that the difference in number of comments is NOT a reflection of the relative merits of the equipment. Which is not necessarily to say that the "quiet" brands are better, but rather to insist that the oft-mentioned ones are not.