Lisp is sexy, but parenthesis are a really hard sell for the wide crowd. It sounds silly, but that's the reality. If they had forced people to learn & use Lisp instead of C, the world might be a very different place. I personally love them even now when I look back at Clojure code.

Clojurescript is just wonderful. I'm not even sure a Haskell-like language that compiles to JavaScript (Elm, PureScript, GHCJS) with really good tooling can beat it, though I haven't tried. Would be an interesting experiment to do a comparison by writing the same app in all the languages.