> Is it clear people wanted to get away from Lisp rather than use a more-or-less clone of S?

That's a good point. How many statisticians were familiar with S but were using Lisp-Stat just because it was free? I don't seem to have traveled in those circles. I wasn't paying a lot of attention, but I don't remember encountering that on campus.

Another slick Lisp package that got too little attention was Yann LeCun's Lush.