What do you get from ivy league schools that you aren't getting from top state schools?

UCLA and UCB are the most affordable in state schools for many CA families and both are outstanding schools ranked in top 15 world universities for a reason. Saying that my own D16 turned down Regents at both for a private school in a top two. Here what she sees so far: resources that absolutely would not be available to her at our state schools from free tickets to a world class conferences and events with $300 stickers price to a funding the product her team is working on, from free patent and business consulting to a large alumni network. And of course no problem with class registration and communication with professors.