It was cheap, I got it for $770. the price has just about doubled now!
also the people are so nice and very helpful they train you how to use it with each pathology and Jon make the assertion if you can't be fixed with his model A he'll send you the B to use which is like 5 g's but actually generates the freqs, he says it is very complicated to use. The model A uses the recordings from model B. Very user friendly.