I currently have a 1st gen 128GB 12.9 iPP with about 100GB still available. I bought it in Nov of 2016 so it's still pretty "new" and in impeccable shape.
I’m considering upgrading to the new 12.9 iPad Pro. Prime reasons being the upgraded storage capacities and the display enhancements. I’m beta testing iOS 11 on my current iPP and I could definitely see myself using an iPad solely over my aging 2011 256GB MBA going forward. But, I’m questioning if the new iPP is really worth it given the still "newness" of my existing iPP and my current usage. For example, most of my docs are stored in the cloud (I have a 200GB iCloud account that’s no where near maxed out) in addition to a seedbox with plex installed where most of my media is stored. Apple hasn’t fully activated the new Files app in iOS 11 beta so I can’t fully test the seamlessness of other server options (Dropbox, Google Drive, etc) nor can I currently test the functionality of saving files to the device itself. I suppose if I ever truly needed additional space, I could always upgrade my iCloud Drive or even use a lightning drive.
Based on this thread, it seems most other current 12.9 users will stick with it. But are there any truly compelling arguments to be made for upgrading?