Exactly. You can literally buy a green card with a ~$500K “investment”. No need to jump through H-1B hoops.

That's more than what you would need if you were hiring for a prevailing wage position.

EB-5 is a onetime payment for a green card (permanent residence). Prevailing wage must be paid every year and you have 60 days to leave when you the company stops paying you.

Yes, but the prevailing wage threshold would be lower than the investor visa, as will the commitments. The investor visa you have to show a plan, hire people etc.