I haven't played Doms since Live until last month and that's one of the things I love about them, they are fluid (unless I somehow lucked into the most fluid Dom build and power set choice ever, and I am rarely that lucky). They're not just "go in and punch" or "shoot from distance", or "crowd control from back here." The one I'm playing right now is the most fluid of any character I think I've played. I get to choose when to keep tossing controls, or tossing ranged attacks, or going in for melee. Or not. Or to build towards any of those, or not. Jack of all trades, master of none of course, but still.
So please don't "focus" my character for me!
Also, perma-Dom is cool, sure, but I'm at 40 (40 levels of fun behind me too) and still don't have it yet and couldn't give a damn. I think it's over-talked about because so many players still have a min/max attitude about any and everything in the game. (I'm sure I'll get hate for that)