I bought my ipad3 last year, but - I'm embarrassed to admit - only in the past 2 months have I used it for anything but reading. In the meantime, I've been absolutely blown away by the iPad's capabilities, many of which I discovered and explored during a recent trip to Canada. I took the iPad with me basically to keep up with emails and occasional urgent work-related matters, but find my horizon has expanded.
I only wish the iPad were capable of running Office 2011 so that i could work on the iPad when I'm travelling. For work, I unfortunately need a laptop. Still, perhaps an Office app will become available some time in the future.