Re:90% of those who apply are probably from India. (Score 1)

I think you're right on the money with this. I spent this summer interning at a top tech corporation where a white, US-citizen was a minority. Nearly, everyone came from India or China and earned a grad degree here. From time to time I would here them say things like, "I could go back home and live in a much larger house with a maid, but then I would still be in India." I got the feeling they like it hear. Also, one of my friends, working on their undergrad, was greatly limited in their job search due to citizenship. They knew that with a graduate level degree several companies would be much more inclined to sponsor them for a work visa (or however that works). Further, among my friends, I agree that Americans are "satisfied" with an undergrad degree, at least to start. Companies will hire them at a good starting salary, and then the company may pay for their grad school.