Karate schools always pop up around the town.

There are no laws/regulations to open a school and can be very profitable to those that know what they're doing.

I've been teaching for 8 years now and I've seen a hand full of schools open and close around me. Honestly, it's not really the American Karate schools that come and go but it's the "Grandmaster so and so" schools. Those schools never seem to stay open. Great martial artists but not so great business men.

MMA schools are all about the instructor. I've heard from some people that the instructor "stays traditional" and I've heard from other people that some instructors are like hanging out with your friend at a bar.