I had a friend who tried to market a product called a Threshlock. It locked a door by bringing up a bar across the bottom of a door preventing anyone from kicking it in. Anyway the cost of marketing it, applying for patent, AND INSURANCE almost bankrupt him. The product was too expensive and didn't fly. I am one of those guys who just wants to work hard, get paid on Friday and be able to leave it behind until Monday. It is way to late in my life to think about getting rich.
On the other hand I am rich. Just don't have money.