Christmas 2011 I got my daughter an iPad2. When March 16, 2012 rolled around (the premier debut date for the IPad 3) I just happen to have I-2 with me when passing a Best Buy. Big advertising banner hanging above entrance way advertising top dollar trade ins for iPad2s. (my ipad2, by the way was a 64gb, Wi-Fi plus 3G) After talking with the sales clerk, I brought the unit in (for fun) just to get an idea of a trade in value. My timing could not have been better. I was very surprised when the trade in value was right around $120 short of an Ipad3 - same amount of memory (64GB - WiFi, 3/4G). So, for me, it was a no-brainer in saying good-bye to my "2", and hello to a "3".
I take quite a bit of videos/photos with my iPad and absolutely love the high resolution quality of the pictures taken with the upgraded camera. The pictures are so amazingly crisper and clearer, and the colors just seem to pop off the screen. IMO, there was so many shortcomings with the camera of the iPad2, that it was almost felt like you were taken advantage of by Apple, by them pushing this cheap camera in a such otherwise very impressive device.
So, in summing up- YES - I think there are MANY advantages to the iPad3 over the I-2, and I don't regret making the upgrade one bit! No doubt, future models to come will be even better that what Apple has bestowed upon in loyal subjects here in 2012.