I second everything Marcus just said. I have been using Brandon's tools (plugins and CMS) since 2008, and have consistently been impressed with the quality and attention to detail that he and his team give to each release.

Just look at "craftcms" in Google Trends and you'll see a nice trajectory of community interest and involvement moving forward: https://www.google.com/trends/explore#q=craftcms&cmpt=q&tz=E...