i dunno definatly not worth it to do that little dps, i dont see any reason arms atm would be of any use, its holding back your classes dps and not maximizing your input to the raid.
when the patch comes out it definatly might be something to look at, i was the arms warrior in bt/sunwell and of course that got blown up and was fun at the end, but right now its lame all around imo. perhaps when dual spec comes out and i can swap with my 2 boh on b4 it gets fixed it will be worth while for a week. /shrug just my opinion. + a tauren with only 1 betrayer looks kinda gay :/