It’s my experience from comparing them against each other that the only real benefit in having two M22s laying on their compared to one VP150 is the dual M22s give a wider center soundstage and by moving them around give you some control of how wide to make it. IMO this effect can be cool for movies but sucks for music which might not be an issue for you unless you start doing multi-channel music. But like Ken says one VP150 will still probably work better.
I assumed that JC still works for Axiom, I haven’t heard otherwise. I would send him a message and ask his opinion of the dual M22s laying down. I think they are still less expensive than one VP150 and if you move to a bigger room and decide to upgrade to an M80 center dual M22s make very nice “wide” speakers for the M80s.
