I was going to say the same thing. Immigration into the US is extremely difficult if you aren't already famous/wealthy/well-connected, that if you want a visa,

I was going to say the same thing. Immigration into the US is extremely difficult if you aren't already famous/wealthy/well-connected, that if you want a visa, coming in through education is your best bet. And getting a job with a company that will sponsor your visa (to say nothing of one that will sponsor your potential green card) is already difficult, but being a student and having a graduate degree is a good incentive.