I voted No. I already have a Nexus 7, which already has a great screen at that size, and I find many less uses for such a small screen that the full 10".
I may, however, upgrade to the iPad 5 if there are vast improvements that I want over the iPad 3 I have now. I use my iPad for hours every day, and never upgraded from 1 to 2 because there wasn't anything I
needed to have. I got the 3 because of the increased screen resolution.
My favorite handwriting app,
Noteshelf, will be ported to Android soon, and when that happens, I may actually not need an iPad any more. It's silly that one app holds me back, but I could not function without it any more.