When I first got my iPad 3, using it to take pics and vids was the last thing I would have considered, espcecially since I also have a camera phone and dedicated digital camera as well, which takes great pics and videos. Everything changed though once I used the iPad to shoot and produce a family party video on the iPad alone. To begin with, the ability to monitor what I'm filming on the LARGE HD iPad screen is much more rewarding and accurate (far better detail) than able to see on much smaller screen viewer devices, and this gives me the the ability to adjust composition and lighting to know exactly what the finished results will look like because what you see on the iPad HD screen is what you'll see in the actual video recording or still picture. For impromptu candid photography, I still prefer using the camera in my phone, but for when I have more time to spend composing a shot or shoot a pre-planned video, I now prefer using the iPad. The results continue to amaze me, and with iPhoto, iMovie, and other iPad Apps (importing music from iTunes etc) , i'm able to edit and produce impressive pro looking videos and slide shows entirely on the iPad and then upload directly to YouTube, Vimeo, and/or email to them to family and friends. They're continuely amazed that I'm able to accomplish all this on the iPad alone, and so am I. Perhaps I'm the odd man out here in my appreciation of using the iPad to take pics and videos, but I now take my iPad out with me (in a SF Bags Muzetto Bag or STM Jacket) wherever I go.
Perhaps The reason I appreciate using the iPad for taking pictures might be similar to the reason legendary landscape photographer Ansel Adams preferred taking pictures with an 8 x 10 view camera.