This is all going to come down to your personal usage patterns, but I have learned in the past that it's better to have too much than not enough. I have had every iPad to date. The first one, I ordered the 64 gig and always had plenty of space. When I ordered the iPad 2, I only got the 32 gig version and I was constantly out of space on it. I had to delete apps every time I wanted to get a new one. When I ordered the new iPad, i got the 64 again.
Some things to consider:
1) App size is much bigger for retina-optimized apps (in some cases double or triple the original size)
2) Pictures and Videos taken with the New iPad's camera will take up quite a bit of space.
3) Apps keep getting bigger and more complex. Some of the better games take 500 mb to 1gb of space.
My advice is to get the biggest one you can afford. The simple fact is, you can't upgrade the storage later, so it's better to have too much than not enough.
Some things to consider:
1) App size is much bigger for retina-optimized apps (in some cases double or triple the original size)
2) Pictures and Videos taken with the New iPad's camera will take up quite a bit of space.
3) Apps keep getting bigger and more complex. Some of the better games take 500 mb to 1gb of space.
My advice is to get the biggest one you can afford. The simple fact is, you can't upgrade the storage later, so it's better to have too much than not enough.