I had my iPad replaced recently, had some issues restoring it as my backup state was inconsistent and ended up going for a full 'clean' device. It was interesting, for the first 4 weeks I had barely any apps on there outside of Kindle, Instapaper and Tweetbot. I used it about the same amount of time, but generally I'd focus on one thing for longer periods of time. I'm tempted to go down that route when I get a new iPhone this month, sounds like it's worked well for other people.