If a person's product is bad, poor in quality, slow, or obsolete, that person suffers financially. [...] Also, if a product is not in line with a person's mission, that person may suffer.
— Robert Kiyosaki; Rich Dad's Conspiracy of The Rich
You may notice that the product is the smallest or least important part of the B-I Triangle. The reason so many people fail when starting a business is because they focus on the product, not the entire B-I Triangle. The same is true in real estate. Many investors look only at the property rather than the entire B-I Triangle.
— Robert Kiyosaki; Rich Dad's Conspiracy of The Rich