Just to add to Mr. Motown's answer.(posted 8538 days ago)There are many more options nowadays for printing from color slides. In fact much of the professional still imaging industry is built around it. Analog Ilfocolor has been supplemented (and often supplanted) by a variety of digital scan and print processes, which allow printing on almost any paper. Lightjet allows for higher quality than analog, as does Fuji frontier for smaller scale prints from both negative and slides. But there are a variety of other printing technolgies which allow for paper or other output from slides such as Iris Giclee prints, all of a quality equal to or surpassing old analog Ilfochrome. And Fuji Crystal Archive (amateur, professional, and direct RP) rivals Ilfochrome for color quality and permanence...
As for black & white slides, while Scala is obviously superior, but a number of suppliers and at least one lab, allow you to make B&W slides from regular slow speed B&W film using dedicated reversal chemistry...