So true. A Renzo school in my area charged $250 per month...they went out of business.
I might be wrong but this is the way I see it.
If your the ONLY academy in the area and have a black belt under lets use Renzo Gracie here, then your going to do VERY good. Nobody can ever say "your not a Renzo Gracie Black Belt". I assume you took pictures of when you got your Black Belt and also have taken pictures training in Renzos academy, with the other black belts, wearing the black belt. Competing is also a plus, but from what i have personally witnessed, not necessary.
IF you move into a place with many BJJ schools that are affiliated, then I can see the average person looking at "Wow Renzo Gracie Certified Affiliated Brazilian Jiu Jitsu Academy!!??" How the hell is being affiliated going to change what you know and what you teach?
Not to say there isn't anything good that comes from affiliations. You get invited to your affiliates tournaments, it adds to your marketing (pulls in a few more people), and its always good to stay connected, networking has its pluses.
If I were to start an academy in California, I think I might have to be affiliated to benefit me. If I were to start one in a state or country that didn't have BJJ, I could run a successful BJJ academy without being affiliated I think.
Also it depends on the instructor. If hes an idiot, or has no business sense and is bad with people (ex, has Salesman written all over him) then he will go under. Running a business isn't for everybody.
I dont know exactly what the benefits of every affiliate brand is, its up to the situation and location to decide. Some also get pressured and feel like they are obligated to be affiliated or their network might outcast them or instructor might all of a sudden change his attitude towards you, who knows.
Personally, I trained from books at first and was in awe whenever I met a blue belt. If a local gym had a black belt, non affiliated, i would have trained there in a second assuming it was the only one in town. THeres just too many variables to think about here.