It’s because hardware has so many limitations that get glossed over vs. software. Manufacturing issues, sourcing issues, regulatory timelines, physical returns, inventory management, and oddities in the physical world are much easier to spot by an investor. Nikola motors and hills?
It can take 6 months once your product is finished to be legally allowed to sell it and even then it could be forced to be recalled or be redesigned. It’s a much more difficult environment to deal with vs I spent a few months throwing together this slop code, thanks for my multi-million dollar buyout.