So I have neither the need, nor the funds for a Pro device. I have an iPhone 6s and a MacBook Air but could use an iPad to make certain consumption activities a bit easier. Specifically, there is one particular app I use for studying and reading documents that are in a proprietary format (can't be exported and read in other apps). I use this app on the iPhone but the experience isn't great on the small screen. I thought about getting a used iPad Air 1 or Mini 2 because this is app is not particularly taxing on a processor or RAM but, for whatever reason, the developer of this app quickly drops support for old versions of iOS. My budget, being what it is, makes it difficult for me to go much beyond $250. I've been watching prices on used 2017 iPads and ipad Air 2s. The Air 2s are a little cheaper than the 2017 iPad, however, I am weary of putting much money into a three year old device when future OS support is a critical issue. Any opinions as to whether an iPad Air 2 is woth $250? Or would I be better served waiting and saving to afford a 2017 iPad? My other uses would be pretty basic- little bit of Netflix, the Kindle app, Omni Focus task management, some note taking in OneNote, and some light web browsing. I want to be sure that I am being smart with what little I have to spend as I would like the device to last for a while. Thanks very much for any suggestions.