I love Elixir. But…
Five years ago I spent time learning Elixir on the side thinking I was investing in an upcoming technology that would pay off for me financially. I eventually built some services in Elixir at work and really enjoyed it. They performed well but the language didn’t catch on with the rest of the team.
However, five years later the mainstream languages (Ruby, Go) are still paying more. I still get recruiter messages for Elixir jobs offering less than market value but I haven’t used the language in over a year.