I’m buying one of these iPads for a new student starting college soon. They use it for casual stuff like web browsing, streaming, nothing demanding. However, I purely want to know from a future proof performance viewpoint, which would last longer and take longer to slow down. I know the iPad Air has the better processor, but would the 3gb of ram in the Air vs 4gb of Ramon the ipp make a big difference? Which matters more? Thanks.