In that case I'm not sure that it's "worth so much more". As I said, you end up with lowest common denominators, not with increased developer comfort. For example, in case of Common Lisp, I very strongly doubt that LSP supports such things as interactive resumable conditions, CLOS/MOP object model for cross-referencing, or image state and session handling. At least it didn't a few years ago when I looked at it. But sure, if you're not very demanding, something like LSP might be enough for you.