Also when I gave a presentation on #clojurescript on my pre-previous workplace (all collegues were "IT newcomers") showing the interactive development (REPL) and moldable development instead of recompiling all the time they was NOT impressed neither interested. And the core dialog was: «But it's possible to do all the shown with REPL with just browser's console! — Are you doing it? — Well... No»
It's like interactivity was there glimmering from the beginning and them just went away and they've used to it.