just got the VP100 & M3ti's for the center and fronts of my set up, they sound great. but now I'm wondering if switching to the VP150 & M2ti's might be a better choice. this is especially interesting since if I was to get the VP150 & M2ti's from the outlet (which I don't mind) the switch would only cost me about $35 plus return shipping of the originals. would this be worth the effort of making the switch?