I didn't read through all this, but I think the C64 product is actually pretty cool from a nostalgia point of view. I think they could sell a decent number of these if the price is right.
All the other models on the site seemed pointless to me as I am not sure what they are trying to be.
Being an Amiga guy, if they did something similar with a near-exact A1000 replica, I might buy one if it was cheap enough. I probably wouldn't use it myself as I need a high end PC, but might give it to the wife just so it can look pretty on the counter while she surfs the internet. An A3000 would also look pretty good. Wouldn't be interested in any other models.