I bought a new 9570 and dont havce the pro drive, but you make good points on everything else.  I think the windsheild wiper is huge and more of a obstacle than a help, also does your seat bounce alot while roading?  A couple more gripes would include:

would it be too much to ask for a hopper auger that folds on a switch for wire clearance

How about a exhaust turn out that gets the black exhaust a little higher up

Including the aftermarket clean out at the bottom of unload auger would be nice especially for the investment we make.