I suspect there probably is quite a bit of it scripted - that's going to happen in every single reality show out there. My guess is that Marcus himself doesn't have the expertise in every field and product; he's got a hell of a good network of contacts to draw upon. I think his real genius seems to be figuring out which people in the given businesses are the key ones that matter and making sure they stick around and are taken care of.
It is entertaining and you can learn some things.
Think his PEOPLE + PROCESS + PRODUCT is on target
Continued in 2015 thread here: http://www.wnff.net/index.php?topic=32214.0