Maybe Castle doesn't need ROAR. They can barely keep some things in stock as it is. They have all kinds of new stuff coming out (I have a Monster Max on back-order). They cater to the common folk, the basher and casual racer. Bashing bores me, but I race a lot (about 3 times a month) and love my CC stuff. I've been to tracks all over the state and out of state. I've never run into a track that strictly follows ROAR rules. I know several track owners and organizers. They would never run a race by ROAR rules as it would cut down the entries.
The fact that ROAR has rules for modified racing shows that there is an agenda. There is catering to certain companies. Modified should be completely open. We all know that too fast of a setup will slow us down, that's why racers don't run 3.5's, 4.5's, etc. I will NEVER race at a ROAR event...and Castle? They are doing just fine without ROAR approval.