"有了 UCB EECS + scholarship, 还用得着花一倍的钱去S吗? 请懂行的给分析一下吧。"
We faced the similar question last year.
I don't think 读S出来能把多花的钱赚回来. But My son decided to go to the more costly college even though Cal is my favorite. So far he is really enjoying his college experience and doing very well there.
So just think of it as that you buy an expensive gift for him. Don't think of the returns.