Sven, ok so if Innova, for example makes paper that are great, why spend double for Epson for Hahnewmuhle is my question.
Sorry, but I don't understand your conclusion.
A quick glance on two typical favourite paper types from Epson and their equivalents from Innova:
44"x50' rolls, (prices from Shadesofpaper)
Epson HotPressNat $252
Innova Smooth Cotton $269
Epson Exhibition $310
Innova Ultrasmooth Gloss $296
/Sven