However, I know (and know that most of my fellow dark matter peeps know) the latest and greatest out there. We discuss it, take a look at it, and usually come to the conclusion of "been there, done that, not mature enough for our system that handles billions of dollars in transactions annually".
Also, one thing that's bothered me recently with developers is the focus on greenfield development. I've done both green- and brownfield, and find brownfield to be tons more stimulating than greenfield development. I know that a lot of my fellow dark matter folks do too. Constraints are more thought-provoking than "I can do anything".
That's why you don't see us caring about some new javascript framework or RoR or Azure, or any other "new" (and usually unproven) technology. We're too busy kicking ass and finding beauty in mature, established languages and frameworks that actually have all the features (and then some) of "newer" technologies.