You can never have enough axe fx's, so the more the better!
I don't use the memory I have in the II. Not yet anyway.
I'm failing to see how some minor IO and a bit more memory consitutes a ~ $600 price difference... Kind of lame honestly
I got a feeling this memory upgrade is for the IR stuff Cliff is working on. I doubt anybody needs that much memory for presets. If you think about it, why go through that much trouble to change design and market a similar product to the II. If you look at the other new features, It makes me wonder about the ROI. Nothing major there.
Consider it the "pro" version. Really, it's meant for power users. Completely understandable. Some excellent features. Does not in any way make the II irrelevant.