Rykon
Five Thousand Club
3E MA is like craft now, yes. He's right on this. Each style is a separate ability.I might be wrong, but I don't believe that you have to put point into the Martial Arts Ability multiple times for multiple martial art styles. Rykon ? Do you know the rules on this? I think that it is just a single purchase, even with multiple MA styles, but any Specialties will only apply to one.
In games I run, I used to have a house rule I use to give discounts on raising subsequent crafts and styles if its hamstringing players too much. (Half cost rounded down to raise a craft or style one dot of its lower than your highest rated one)
I only run one game in person now cause I'm a bit scatter brained and lazy. I use an entirely different XP table for it instead. (Flat costs, no algebra)