Honestly it's completely a personal choice as to whether you think upgrading is the right choice. I will tell you though, the iPad 4 is ridiculously fast, and honestly after being spoiled by retina I can't go back to a non retina apple device. I picked up the great mini on Nov 2nd and ended up upgrading to the 4 2 days later because my eyes didn't appreciate the switching from my retina i5 to the mini. It really is noticeable and the experience of using a retina display is brilliant and I can't imagine not having one now. Apps load incredibly fast on my iPad 4 and taxing games(Nova 3) play incredible smooth at high fps. While I will concur this is a matter of opinion, I think you would be incredibly happy with the monumental leap it would be to the iPad 4. Good luck in whatever you decide.