16 gigs is fine if you rarely or never take your iPad outside of you house. Well, it's fine outside the house too so long as you don't mind paying a lot for data. However if you travel a lot or do a lot of multimedia aspects such as 1080p recording or iMovie then you'll want the most you can get. Keep in mind also that the new retina display makes apps that take advantage of the new resolution balloon in size dramatically. Btw, I have the new white 64gig verizon iPad. No issues so far and loving it.