I got my son this one to help teach him to talk and learn more. I got the 64GB cause I didn't expect apple to allow memory upgrades. So far after nearly two months, we are down to 45.8GB free, so we have already passed by the 16 gig point in less than 60 days !
I got it used for pretty good price and have no regrets missing out paying full retail for 128 gigs.
Sent from my iPad using iPF, still lots room left in 64GB