Picking a language is a matter of selecting the best fit given the constraints of the project.
For stuff I like to work on on my own time, "how I like to work" is a major forcing constraint. So it's no surprise that I have a large number of Lisp projects sitting around. Maybe it's because I'm auDHD, but the ability to evolve a program through active dialogue with the machine (and not of the sloppotron variety) just fits better with how I think through a problem and its solution.
For stuff I like to work on on my own time, "how I like to work" is a major forcing constraint. So it's no surprise that I have a large number of Lisp projects sitting around. Maybe it's because I'm auDHD, but the ability to evolve a program through active dialogue with the machine (and not of the sloppotron variety) just fits better with how I think through a problem and its solution.