Since you mentioned UConn...

... in some of the comments, here is a story on two of their recruits coming in, one of whom is still considering the NBA. Also notice the mention of Dennis Scott

From the article:
"The atmosphere is nothing like, say, 1986, when a young sharpshooter from Flint Hill (Va.) named Dennis Scott, who was coached by Vetter and rated the top high school player in the nation, never thought twice about attending Georgia Tech. Scott left for the NBA after three seasons with the Yellow Jackets.

"Probably the best player I coached in high school was Dennis Scott. He was by far the best player in the country, and there wasn't even talk about [going straight to the pros]," Vetter said.

"Dennis could have done it. He's in the category of a Rudy Gay. It just shows how high school basketball has grown every year."