Programming languages are like locomotives: you don’t admire them for their looks. You don’t get rid of them because they’re now “last year’s model.” You use them to haul revenue freight. Perl hauls a lot of digital freight in this world. Millions of lines of battle-hardened source code, developed over the course of years and performing critical business functions, will continue to be in service for decades ... and the languages they were written in will remain in service for that purpose.
Languages are dirt-cheap. (We really don’t need another one ...) The software that they’ve been used to construct is: “Priceless.™”