...but there is a sonic benefit to the amp separation that many, many customers have noticed. Is that the case here?

Also, it's much more likely to be more cost effective if you can fit everything people want into one working package than to have many separate units. While people do want different things, they may find the single unit to be easier to get and find that some items are simply nice to have, but not necessary. We can go on and on with this, but it still comes back to the first sentence. It's more cost effective to make the fewest things you have to.

I'm not trying to discourage you from looking for what exactly you want. I just saw some dangerous assumptions that could unnecessarily limit your search. I wanted to know why you were limiting yourself.