For me, personally, life in South Africa had come to an end. I had been lucky in some of the whites I had met. Meeting them had made a straight 'all-blacks-are-good, all-whites-are-bad' attitude impossible. But I had reached a point where the gestures of even my friends among the whites were suspect, so I had to go or be forever lost.
One of the great things about Silicon Valley is, irrespective of how competitive you might be with another company or how closely you might be working with that company, there's a great sort of give and take, and camaraderie from - between - some of the executives in the valley and some of the other investors in the valley.