If you've never dealt with a language similar to Haskell, I think the learning curve is very steep. But it was one of the most worthwhile things I did in my programming life.

Or not, because now I'm stuck with a view of how the world could be, which at least in my professional work life is pretty much out of reach. (Might be different for everyone individually.)

I already feel this way about Clojure vs other languages I know, or Ruby (what I get paid to do) vs Python (what I use when I must).

It gets tiring to know elegance and terseness and then have to use wooden clubs.

If Haskell is some steps further up the ladder, but opportunities to use it are very limited, it would make me even more frustrated.