A lot of this discussion has devolved into the management side of choosing a language and strayed from the realistic side. But insofar as to why people would choose Haskell...
Haskell is fast, compiled, type safe, memory optimized, allows concurrency and parallelism. The use cases where you'll see using Haskell will generally be companies like financial sector where very fast and error free execution directly translates to making more money, e.g. dark pool front running trading algorithms. Generally you don't hear it extolled because of who is using it and the secrecy around what it's being used for, e.g. competitive advantage.
Outside of that you'll probably only see it in academia because of a lot of the reasons listed in the replies. In my opinion its a harder language to learn because it really is just lambda calculus translated to a programming language.
Haskell is fast, compiled, type safe, memory optimized, allows concurrency and parallelism. The use cases where you'll see using Haskell will generally be companies like financial sector where very fast and error free execution directly translates to making more money, e.g. dark pool front running trading algorithms. Generally you don't hear it extolled because of who is using it and the secrecy around what it's being used for, e.g. competitive advantage.
Outside of that you'll probably only see it in academia because of a lot of the reasons listed in the replies. In my opinion its a harder language to learn because it really is just lambda calculus translated to a programming language.