Re: Cobus. Overrated?
The way I look at guys who are doing the instructional route is this: they're just passing along information. When I taught that's basically what I was doing. Whether or not they're big because they play with somebody else is another issue. I think it helps if they are in the public eye for more than just teaching, though, otherwise you wouldn't spot them in the first place. I think the only guy who has really done the educational world good, without ever having played with any big names or famous for his own music is Dom Famularo.
Cobus is cool. He's doing what he can to perpetuate his career, and that's good. Not everyone has to like him, and that's even cooler. You can find what you want from the people you like if you look hard enough.