Hubby has an iPad Air 16 GB. I want to get him a new one. I see the Air 2 only has the A8 chip. Would you get the pro instead just bc of the better chip? He won't be needing the pencil function etc. Also, he did fill it up at one point but has since managed his space well. Would 32 likely be acceptable? I have a 128 gb phone so I like lots of space. Is content really taking up double the space it did 2-3 years ago or would 32 be a space upgrade?