Grandson #2 - a high school senior- has grades of 5 A+ and 1 A in advanced placement courses.
When I was a student that would have made him a shoo-in for scholarship money.
He has applied for financial aid at several colleges with no luck so far.

Really? I am not much younger than you, but I was in the same situation back in 1970 and all the financial aid I could get was $130 per semester. They said that my parents made too much money for me to get any more aid (And believe me, they were not at all wealthy). And this was to a public school (Kent State). So maybe his parents are just too well off for him to get subsidized. You should feel proud that his parents are doing so well. Just curious: what colleges is he applying for? If they are private schools, maybe he should set his sights on something a little more affordable.