do the maths, page-15

I tend to disagree, I think it will cost a deal more than straight metal roofing. Far less however than other solar options.
The whole reason we are in Europe is because they are moving towards carbon neutral buildings, and they tend to have feed-in tariffs. So they will sell it as paying itself off while meeting the new building regulations. And if you dont want to go with Corus/Dyesol you are still going to need to get your renewable credits from somewhere that is likely to be more expensive.

Dyesol have mentioned the $75sq/m number on at least three occasions I can remember, so it isnt a misprint, it might not all be materials as they have shared IP in the product so some of that might come through those channels also.