First I think $200 is over the top for almost any school
But having said that, running any business is expensive. You have to keep in mind everything that goes into starting and keeping the business open.
Startup Costs. Mats, Rings, Octagons, heavy bags, etc. are expensive.
Insurance. I'm sure liability insurance for a BJJ/MMA gym is pricey.
Utilities. Business don't pay the same rates that you do at home. Business rates are significantly more.
Advertising. Something else that is super expensive. Yellowpage ads alone can easily be over $1000 per month. Add in other forms of advertising such as the internet, etc. can really run up the bills.
Association/Franchise Fees. Another thing that can cost a MMA school alot of money.
Instructors. With a BB taking on average 10 years to get, that's the equivalent of having a Doctorate level education. Quality Instructors are a commodity and don't come cheap.