I currently have a first gen 12.9 (128 GB cellular) and had my mind made up to pick up the next gen 12.9 (256 GB cellular) and trickle down the old one to my son. We're all familiar with what has changed and with iOS 11 coming up, the 12.9 will take a step closer to becoming a computer replacement for a lot of people. My problem is that for work I will always have to use a laptop so it will never be a work replacement for me. And I have a desktop at home that I use for music and photography, so it won't be a replacement for that either (I realize that there are some nice programs in iOS that do these things, but it's a compromise - especially with no mouse support!). I do draw some, and the big screen is great for a lot of things. Yet thinking back on my use and how for the foreseeable future how I will use it, and I am now realizing that the 10.5 would make more sense as a complimentary device for me than the 12.9 does. I'm kind of surprised I came to this conclusion as I would have already picked one up if I haven't been so swamped at work and traveling and now the 12.9 is out of stock locally. So I think I will pick up a 10.5 256GB cellular next week. I'm sure I'm not the only one to decide on a different size - kind of curious as to which way you went and why.