I can’t speak directly to the VP180 but I do have a M80 center channel which has the same driver complement. IMO it is very much worth the upgrade. Sonically it is better than the VP150 on every level, lows, mids and highs. So I think it’s worth the upgrade.
However, like marks said many people boost the center channel simply because they like to run it a little hot, but also because not audio sources are created equal. I find particular TV shows and movies have the center channel mixed low so have to boost it up.
