I think Google has underestimated the number of Google Reader users. There has been a very vocal backlash from the bloggers, journalists, reporters, media personnel, and information professionals, etc. who use the service the most. Its very disappointing to me this service is being retired when its so useful. Personally, I use the service daily following over 100 blogs on a variety of topics. Retiring Google Reader is not going to instantly make me sign up for Google+ or other Google products either. Fortunately alternatives are available and being improved in response.
Google Reader Retires July 1st: Options for When Google Sucks | Stephen’s Lighthouse
8 Google Reader Alternatives That Will Ease Your RSS Pain | Gizmodo