I've trained in several martial arts over the years. During that time, I've paid less ($60/mo) or more ($150/mo) depending on the area, skill level of the teachers, etc.
However, I'm noticing an odd pattern; it seems that while other styles like Tae Kwon Do or Muay Thai charge by the month, most Krav Maga schools charge by the lesson, and in general, the lessons are quite expensive ($20-$50 for an hour). Why is this?
Is it mostly that Krav Maga is easier to pick up than more traditional sport martial arts, therefore you pay more for a faster paced course? Both my wife and I would love to take Krav Maga at some point in the future, but it's a bit too expensive to go to classes once a week.