What amazed me was the fact that they shot so many people down on their presentation skills, and left them walking away thinking that that was the only reason they did not get investment.
However, when the two least-prepared and nervous brothers came bliddering on with some sort of a 3d simulator, two of the Dragons leapt in on the basis of the concept and patent alone.
To add to that, I have no doubt that the two brothers were overflowing with intelligence and definately needed financial and marketing assistance.