I've noticed this too, most iPad owners I know simply do not renew it, because they don't need the extra power. I've updated an iPad 2 because its screen is cra

I've noticed this too, most iPad owners I know simply do not renew it, because they don't need the extra power. I've updated an iPad 2 because its screen is cracked, but I still use it from time to time. The iPad Air 2 is of course much faster, the screen is much better, and it's lighter; but for casual browsing the iPad 2 is still mostly good enough.