We're starting to see people take delivery of S4 sedans now and they're an awesome package. I would trade my '09 A4 Avant in a second IF Audi offered an S4 Avant in North America.
I love my Avant so much that I would rather drive an A4 Avant than a S4 sedan. Nothing against the new S4 sedans but I just wouldn't want to give up the Avant body. If they (S4 Avants) ever come to NA I'll be first on the list.
I'm curious to know how others feel on the subject. I've seen blurbs on various threads about people's feelings but I figured we could compile them and see just how many feel like I do.