I think it's because he has no expertise on technology, can give you zero advice, will actually probably give you the wrong advice, cannot help you with your scaling or implementation issues, cannot refer you to the right technical people when you need it. The one thing that silicon valley has that none of us in the rest of the world have is a vibrant network of like minded, able and willing to help people. It's perfectly ok to invest, but I guess that doesn't make you part of the silicon valley. Plus it's the old nerds/jocks war.