Thanks for the advice guys, originally my main reason for doing this was wanting to get all my Icloud video clips onto the Ipad to edit in Imovie. Turns out when I looked into it my entire photo and video library on Icloud is only 24gb, so 64 should be fine for what I need.
Still tempted but I put a fancy screen protector on last night and the nearest apple store is a good 45 min drive away, so I think I'll stick with what I have. Air1 with 32gb was fine space-wise, so I should be good.