*This is equivalent to: There are tons of people who think space is cool or useful and do nothing because it's too expensive and that won't be true with SpaceX's costs in 10 years.
I seem to remember Elon saying this himself in a relatively recent announcement. I believe it was the one where they unveiled the human pod thingy to go ontop of the falcon, but could be wrong. Either way, they use modern design and manufacturing methods, where the competitors like ULA use methods developed in the 70s and refined slightly in the 80s.
The capital equipment probably is largely pretty specialized to not only the market they are in but their approach to it, and may not be that marketable on its own.
And, despite the name "human resources", regular employees aren't property, and their attachment to SpaceX may be fairly tenuous, particularly in the event of a change in management and operational style.