[amyjess]

While the use of the term "dimwits" is definitely unprofessional, there is considerable value in knowing a language that's used by a small but critical segment.

Case in point, the banking world's use of COBOL. Very few organizations use COBOL anymore, but those who do are using it in some absolutely critical pieces of infrastructure that can't easily be replaced. The combination of low popularity and critical usage means that people who know COBOL are in high demand and can command fantastic salaries due to rarity.