> In Lisp, you have to spend significant time on this trivial stuff. So if you are writing a program on your own PC for your own use, then Lisp is fine. If you are programming anything that is going to run on existing infrastructure or interoperate with other programs, it's very difficult to justify the additional effort of using Lisp.

Remember: Lisp is a family, not a language.

The best counterexample to your claim is: http://clojure.org/

I'd argue even CL covers a lot vs your claim (but please don't make it my arguement, focus on Clojure) with QuickLisp: http://www.quicklisp.org/beta/