What you're looking at with those offers is likely a PhD in computer science or engineering who specialized in something those companies want. Those aren't what

What you're looking at with those offers is likely a PhD in computer science or engineering who specialized in something those companies want. Those aren't what you think of as internships done by Sophomores or Juniors in college. They're an extended interview of a highly sought after expert in their field. Both of the candidate by the company and vice versa. That's why the offers look more like salaries. Also, those "housing" offers are ridiculous. A 1 bedroom here can cost you 2k/mth easy. A flat, $1,500. I wouldn't be surprised if they're staying in corporate housing and those are just estimates of the value in the internship "package".