Vocal harmonizers seem to have come a long way from a few years back.

That said, I don't think they replace live voices for effect and, when doing single gigs, I use the VH2 sparingly.

Our audiences seem to enjoy it when harmonies are done(once in a while) by guest singers...the different sounds of voices and actually seeing multiple folks on stage.

I realize that most are using harmonizers as solo acts and perhaps I won't say this quite right..

But, for our audiences, I don't think a harmonizer does much more than add a bit of interest to a song. I don't know that our audiences enjoy a song that much more if a harmonizer is added?

Just a thought.