Nothing in low volume can be produced cheaply.
musk’s Roadster, which took 100’s of million $ investment to produce, cost $109k - in a largely unregulated environment, using many off the shelf components.
History shows snakeoil salespeople are good at their craft.
When the dream leaves youtube and flies reliably, without injury, then they can claim success.
I seriously hope they get it right, just the whole system is designed to prevent success. As it has been sold, anyway.