> My two cents is that Musk (being on the spectrum) is driven in a different way than Bezos (and therefore, being obsessive to a greater degree [1], making him more involved "on the ground", leading to SpaceX's success).
My perspective, having watched multiple interviews of Elon and Bezos, is that Musk is just really passionate about tech. He's an engineer at heart, that's why he's directly involved in the development of the tech, which is central to all of his businesses. He's also a risk taker and a pioneer, he's not afraid of taking big risky bets on unproven technologies, he seems to actually enjoy doing that, and proving people wrong.
Bezos, on the other hand, is passionate about business and making money. He would like to have the tech success that Musk has, but he doesn't have the vision and the interest in how exactly the tech works. Once he sees that something is going to be financially successful, he tries to copy it. Amazon is successful because it has good execution, economies of scale and competitive pricing, but it wasn't the first online retailer, or the first cloud provider, etc.
I don't know if I would invest in Blue Origin. Personally, I think Rocket Lab is a much more interesting company (that is already trading on public markets). It's being led by someone who is genuinely passionate about space and has a proven orbital launch vehicle. I wish I could invest in SpaceX, but IMO Rocket Lab is the next best thing to invest in, a mini SpaceX.