Don't get me wrong, I have worked with Rails - I admire what 37s have done and a good rate of churn in new ideas in any profession can be healthy and welcome thing.
I just wonder if 37s have gone from being the underdogs? What do you rebel against when you are the status quo - at least among the opinion formers and alpha geeks?
It is like when a renegade leftfield music act become mainstream. Look at Rage Against the Machine (with their leftist anti-capitalist music) becoming millionaires after signing up to one of the biggest capitalist music corporations on the planet.