There is definitely still interest in the vintage look.  Those 70's receivers still command a crazy price.
I helped someone put a small system together who only wanted to spend about $400.00 on the amp.  I showed them the Yamaha 301 integrated and the Dayton Audio HTA-200.  No contest, they chose the Dayton just on the look.  The unit is a hybrid seeing the tube got them excited.  I was really surprised at how well that unit sounded for $400.00.  It drives a set of Kef R3's pretty well.
JBL put out an integrated amp with a retro look.  There were others just can't think of them now.
My preamp has menus which once set up I don't have to mess with, my preference would be something like Pass where it's a straight forward preamp with no menus, keep it simple.
I'm really surprised someone hasn't already offered some type of 70's replica.  I just wonder if that resurgence has peaked already or not.