The carbon molds cost money, the design of the molds costs money (savings if you take up someone else’s last year model), the “print run” costs money...you have to guess how many sales you think you’ll make and place your order with the Asian company to make them, then pay to have them finished and shipped over, then built...then pick a price point that you think will get you past break even without putting the punters off.
Invariably your sales are too low to get a reasonable cost from your suppliers, and the retail price can’t be put high enough to cover the outgoings. Your customers complain they’ve been ripped off, you’re out of pocket, the bank/cloud funders wants their money back and you go bankrupt.
Only the factory makes reliable money.