It really boils down to this: if you do not use your iPad allot, you will not value any changes no matter how good they are because you simply don't need them.
1.) Renting HD - A better quality screen makes a huge diffence to everything, makes you feel closer to all your content and makes your content feel more real!!
2.) split screen Multi-tasking is fantastic, imagine running a game in real time while you check your mail or watch something interesting on youtube. Think of the productive possibilities.
3.) 2 Gigs of Ram - being able to run and move between multiple programs faster and more effortlessly.
4.) Apple Pay - think of business potential or doing something on the go at a coffee shop fantastic!
5.) possibly 256G of storage - think of the possibilities.
6.) Touch ID - you say Touch ID like its nothing, it's a massive tech upgrade, being able to pay for something with simply just the touch of just a finger, the features and possibilities are brilliant.
7.) better front and rear camera - again you say this like its nothing, your iPad can do incredible things with the camera, annotating pictures, design, scanners, business notes all benifit tremendously from the camera, think of skype and face time!
8.) Faster processer - everything happens more instintaineously, who wouldn't want that!!! or who wouldn't say wow that's really nice! Just knowing that there is an iPad Air 2 that does what I do but much faster would make be slightly jealous.
9.) Thiner & Lighter - it keeps feeling more like there is nothing in your hand, just less of a physical barrier to information and productivity.
10.) better battery - travel, work or leisure do everything you want with less interruptions or worry about Batery charges, that's pretty big.