My only use of XSLT (2000-2003) was to make interactive e-learning applications. I'd have used it in 2014 too, for an interactive "e-brochure", if I could have worked out a cross-browser solution for runtime transformation of XML fragments. (I suspect it was possible then but I couldn't work it out in the time I had for the job...)

If you can use it to generate HTML, you can use it to generate an interactive experience.