Also be sure to ask questions and find out:
Who actually teaches the classes? The person who owns the school might have great credentials, but will they be teaching your class?
How often can you attend class? (Not just how many days the school is open)
What about other fees? Some schools might quote a low monthly tuition, but have significant hidden fees that add up over time. Ask about testing fees, program upgrades, and required tournaments.
If you live in the Los Angeles area we encourage you to come try a class at the School of Martial Arts.