The upgrade form VP150 to either of the BIG centers is well worth it. I had the VP100v1, VP150v2 and I have heard both VP160 and VP180 and they both sound great wih the M80s. The VP160 doesn't hit quite as low and maybe not quite as hard as the 180(nit picking on these 2 points), nor can it handle the 700W the VP180 can take but the 160 can handle more than enough power for all but the largest of HT's. Where the 160 betters the 180 is off axis listening, to me it came down to this feature, so I went with the 160, if all my seating was directly in front of the screen I would have gone with the 180.
