I think Lisp is kind of magical if you buy into the iterative nature of computing. Sure, it's functional in the sense that functions are cheap and easy to decl

I think Lisp is kind of magical if you buy into the iterative nature of computing. Sure, it's functional in the sense that functions are cheap and easy to declare/use as values, but if you look at how things like macros end up working, it ends up being about having control of your runtime. If you're into Haskell/Prolog, you probably are much more on the mathematical side of things... honestly I can't think of much you can express easily in Lisp (CL for example) that you cannot transform into an almost equivalent solution in Haskell. It's good to try out a Lisp (and get up to macros or something), but my personal feeling is that Lisp is probably more of an advancement for people in the dynamic language universe (JS/Ruby) than it is for people in the ML-y languages.