Very true and wise. As a "mid-guard" developer, it's a fight between "get off my lawn" and "pay attention, lest you become old and irrelevant". I like noSQL, but I feel that Mongo has made some sacrifices to move to the front. Given that performance, I think plenty of new devs have sold into it, and get upset easily at challenges. Maybe they'd have a different response were they committed to Riak or CouchDB.