Well, I kept my iPad one literally until about six months ago, and up to that point I was pretty happy with it.
I definitely don't need another iPad, I'm still marvelling over my iPhone 6S, not even the plus version, as I find with Stanza (which yes, I am still using, even though it hasn't been updated in God knows how long), it comfortably feels like a small paperback novel in size. Likewise, watching video on it is great, and I think it's more powerful than most of the iPads.
I was just curious if any of them might be cheap enough for other applications. I really do like watching TV while I cook, and although my kitchen has a bar set up, so I can technically sort of look out to my main monitor (I don't have TV, I watch TV entirely on my main screen, posted in the set up thread), it would be nice to have a screen in the kitchen so I can watch TV while I cook.
But if it's not worth it, it's not worth it.