I made it my primary computer purchase from the year to pair with my now not so frequently used iMac so I went upscale with the white, 64 GB, 4G AT&T model.
I wasnt sure I was getitng it until it was too late to preorder (timely) so I havn't actually bought it yet.
Ill definitely be going with a black wifi model, just not sure between 16 and 32 gig. 16 was fine on the iPad 2 but between retina apps and using the full res on my photos I think I should probably go 32... but man I hate paying $100 for 16 gigs... seems like the worst value of all the models. And I know I dont need 64.
with the way the size of apps is going, with the retina display and universal binaries, a lot of people who previously had 16GB models are going for the 32GB this time round, i know i am.
I have a 64GB 1G Black iPad and I didn't use half of the space. I decided White iPad 32GB WiFi since I already have a 4G MiFi and a iPhone for GPS. I will probably get rid of my MiFi when Apple releases a new iPhone with LTE.