Thanks for putting this into words. People want a reason to log on, a reason to show up to work.
I wrote a blog post on Monday about a relatively old and not-hot language. The post nevertheless trended on Medium and received 50k views. A lot of the feedback was from people who were just happy to see someone senior say something positive about the not-hot language.
Anyway, working with The New Hotness also gives people something to put on their resumé: “I built system X on top of The New Hotness. Nobody had built such a system before for The New Hotness”.