Depends on what kind of career you want and what you&#x27;re hoping to get out of it. For me, a career is a tool I use to enable my life. Regularizing it as much as possible is worth it for me.<p>Languages don&#x27;t just disappear. People still make fine livings programming Fortran. If I&#x27;m going to keep programming for 20+ years, I&#x27;d be happy to be one of those guys. I&#x27;d rather move into business, but if for some reason that never happens, being a specialist in a deep niche holds a deep appeal for me.