He had a challenge this year on flipping items from free section of Craigslist, yard sales, thrift stores for profit.
What is this all pretty much useless? He gives away 99% of information for free (I've been watching his videos for 3 years). He comes out with a book once every two or three years that's a synthesis of mostly what he has already given away. Think of Tim Ferris' book Tools of Titans.
Do you think advise like work to make money so you can fund your own businesses if no one else wants to fund you is useless? How about figuring what you want and reverse engineering the path? Or to successful entrepreneur who doesn't find money rewarding anymore, that it's good thing, because most people never get past the phase of chasing money, that he can focus on what he wants and finds meaningful.