3 years of Haskell.. May I ask where do you work? I've been trying to learn Haskell but are afraid that there are no jobs out there for Haskell programmer. Job sites aren't helpful in revealing the Haskell jobs either.
I would assert that learning a language for the joy of it, or for how much it expands your mind, is a much better motivation than that you hope it will get you a job. And I believe that a number of potential employers out there feel the same way.