To be fair, your iPad 3 is an iPad 2 with a retina screen; I remember buying an iPad 3 and it was glacially slow even at launch on the original iOS.
I would imagine the best use of this device post eReader is a photo stand given the gorgeous screen... or something else that wouldn't need any interaction (it will be too slow to want to have touch interactions with).
I use an iPad 2 as a IPcam monitor. The battery doesn't last long, but I'm able to grab it off the charger and take it around the house if I'm watching something going on. It doesn't support my new AI smart cams, but it still functions.
Only in a few circumstances is it so slow that it's not interactive, otherwise it's actually perfectly fine. I could never really find a compelling use for the thing beyond media ingestion and browsing anyway, which is exactly what I'd do with a new one, and why I couldn't picture myself buying a new one.
I would imagine the best use of this device post eReader is a photo stand given the gorgeous screen... or something else that wouldn't need any interaction (it will be too slow to want to have touch interactions with).
I use an iPad 2 as a IPcam monitor. The battery doesn't last long, but I'm able to grab it off the charger and take it around the house if I'm watching something going on. It doesn't support my new AI smart cams, but it still functions.