Quoted from thedefog:
150 was probably the smartest thing they could have done to get the ball rolling without rolling out of control. I think that was a very wise decision IMHO.
They are probably very efficient and run with a very low overhead. It is probably better to work out all the design and production problems on a small run rather than something larger where there are too many problems to fix at once and every mistake cost you a lot of money. My family has a winery and most wineries lose money. Largely because they start with a super fancy setup and then get slowly bled to death with too much overhead. My guess, the big thing that they got from AFH would be that they got the process down well enough to keep the lights on.