Unfortunately people have a habit of over-estimating the Amiga market, which is why most new products and kickstarters never take off. The people behind the projects have the technical know-how, but not the economic skills to establish if it is feasible.
The A1200 housing project is a good example - 125,000 euro target for a 79 euro product requires over 1,500 sales. Yes of course a few people will pay more for the 'special editions' but most people just want the product. Simple maths like this show that it's not realistic, there are not 1,500 Amiga 1200 users that want a new case. I'd be surprised if there are more than a couple of thousand active Amiga hardware users in total across all systems.