While I understand what you're saying, I don't know that there really needs to be a "wow" factor with every release. I think the platform is already very mature and has a clearly defined job to do, which it does it well. It’s been doing it well for years. Also at three releases a year, incremental improvements rapidly add up, so that when you look back the gains have been significant, they just may not jump out at yeah on a version by version basis. A post on my company blog got into this a bit more, linked to in my profile if interested.