I love your work, but I don't think Cuban was playing the hard-nosed businessman when he invested; rather he saw something in your idea that just might turn a profit.

I think it's rather the same with Google and YT. Google saw that video was going to be big on the Web but their Google Video experiment was suboptimal in implementation They saw that YT did it better and saw a future of integrating that technology with Google's other services, and it paid off.