First of all, this is targeting the C64 retro crowd and not the Amiga community. Second, that custom designed keyboard is close to $100 at OEM costs, so MSRP going to be a bit high and the pricing has to high enough for retail chains to make a profit on it as well as C=USA. Third, the pricing in EUROs is 420. Fourth, how much did you spend for that G2 based SAM440?
My Sam440ep-flex runs OS4, the CUSA-box doesn't, so it's "kind of irrelevant" - different "platforms".
But ok, just considering the case, it could be something for the C64 retro crowd...