I'm trying to decide what the $100 difference is between the two. I wouldn't normally use Melodyne to fix the pitch or timing of 3 or 4 part chords, but as a single note melody editor.
However, if I could easily copy and paste melody lines within Melodyne and turn them into 3 or 4 part harmony sections all at once that would be worth the $100 for me.
Does it work that way? I'd love to know before I spend the money. If it can't do that I probably only need the assistant version.