MaryZ, the NSF offered some excellent summer programs back then for a very reasonable price, with lots of choices. My son also went to one at Rose-Hulman U, on engineering. But after my daughter went to WCS there was a change in administration, NSF funds were drastically cut, and when it was time for my youngest child two years later, there was very little available. So she went to one provided by Northwestern U on engineerig. Came home and said, "I don't want to be an engineer."
It's too bad programs such as these are not available to more students. Sure, there are many provided by the individual colleges and universities, but without the govt. funding they are out of range for many bright students. And yet we complain about the low number of students going into science and math, and also about our standing among other students of the world.