Flipping houses is another scam.  Had a friend that spent much of his life getting rich fast by attending symposiums on house flipping.  Take a $5000 house, invest $35K to $40K and sell it for $50k.  Pay 12% interest on the money to fix it up and travel all over to attend the symposiums on how to do what he was doing.  He got to sit and talk with the guy who was a millionaire and some other successful flippers who were part of the program.  
I was never impressed with his talk of these alleged millionaires as you could go into our town and go to the JD or IH dealer and talk to millionaires almost any day of the week.  
I think the only ways to get rich quick are; inherit, marry, win lottery.