I am new to CAS, but not new to shooting. I am joining a SASS outfit. Why? A couple of reasons.
First, they are close. In fact, there are two different SASS groups within 10 miles of me. The closest NCOWS outfit is at least 600 miles away. Say what you want about appealing to the masses, you can't join if there's no one TO join.
Second, CAS is an opportunity to shoot, honor american tradition, and most importantly (to me), an opportunity to do them with my family. I am sure there are women in NCOWS, probably several couples, maybe even some families. But from what I've seen, SASS ACTIVELY encourages women and families - that "trying to be all things to all people" thing. To us, the appeal of SASS is that there is something in it for all of us. My wife and daughters are new to shooting, and while willing, are more than a little intimidated. I've shot everything from 9mm to 50 cal. It doesn't matter that my .38/.357 doesn't recoil, or belch black smoke. I've shot all the bucking .45 ACP and .357/.44 mag I care to. What matters is that my wife and daughters can stand right there with me, and as a family we can appreciate shooting, american heritage, and each other. They can learn the fundamentals, I can work on speed - oh, and save a ton on reloading costs for this "posse" of mine.
I'd like to have the luxury of being a purist. But it's more important that it be something we can (afford to) do together. I've spent too much time away to take up another interest that doesn't involve my family. I am grateful (and completely floored!) that this is something they have expressed an interest in!!
To me, in my short time in this "world", the biggest divide and lack of respect is between the powder types and calibers, not the organizations...not everyone in the old west shot .45LC. There were a lot of smaller calibers out there for a long time, and I think Wild Bill himself shot .36 out of his Navys...there really is room in CAS for more than one type of challenge, I think.