Google Reader is the Solution
I was a long-time hold-out user of standalone RSS aggregators (SharpReader for Windows and Straw on GNU/Linux, both of which have been somewhat stagnant over the last couple of years). I’ve finally thrown in the towel and switched to Google Reader. It was a great decision.
The key factor is mobility. I check email and blogs from my personal laptop; our kitchen computer; my office workstation; and, perhaps most significantly for Google Reader, from my cell phone. The Google Reader cell phone app is quite good (handy “keyboard” shortcuts, efficient presentation), and allows me to catch up during time that is difficult to use for other purposes: waiting for the train, standing in line at Starbucks, on the elevator.
The only real downside is the lack of offline support (although I don’t think it would take a rocket scientist to create it), but this is far outweighed by the mobile functionality. As “access anywhere” becomes more important than “offline access,” I predict we’ll see more users of all applications make this sort of switch.