either memory size would be adequate, my main concern is suppose if its really worth the extra 129 for 4g. i already have a macbook pro and 64gb iphone 4s. my thought with the 4g on ipad is its an extra cost AND expense as you ahve to pay monthly for that service. here in canada cheapest plan is 15 dollars a month for 250mb. its contract free so u dont have to use it all the time but ive heard alot of people even big youtubers like jon4lakers say they never used 3g on the ipad 2. my main places im at are at home and univesity campus both of which have wifi. i do travel home and to school every weekend on the train but via rail has wifi availble, however its kinda restricited (cant go on youtube XD). would 4g be worth it as an option and expense? thanks!