I think what you said about keeping some popular, prebuilt configurations on Amazon makes perfect sense. I am not sure why they decided to entirely cut off Amazon.

I have ordered products from Amazon that haven taken over a month to arrive. I am not sure why Amazon rush these folks. I think Amazon is fucking up here by trying to appear as a faster delivery solution over a quality of product solution.

I think combining both, allowing for sale of pre-made, popular products, as well as allowing longer windows for custom built speakers is a solution that will work for both parties.