Wiiliam Dale Jr proposed:

"The difference is that COBOL found a large user base - finance - that has
great need and deep pockets. [..]"

Banks used to use Ada too. Not all have abandoned it, but to quote from a recent 
recruitment agency's advertisement for financial ADA programmers:

"Vorgesehen ist eine Migration von Ada über die nächsten Jahre auf eine andere 
OO-Sprache" (a migration from Ada to another OO language over the coming years 
is foreseen) ( HTTP://WWW.Iares.Ch/account660/cgi-bin/Reporter.exe?ID=303 ). 
(Actually I overlooked the word "andere" (other) before and wrote a letter 
pointing out that Ada 83 (which the job is for) has been followed by the OO Ada 
95.)

(The webpage correctly has "Ada", but an email from the company had "ADA".)

Anyhow, Dirk Craeynest has reported on many Ada jobs announced in a weekly 
general jobs emailed newsletter.