Q: How many gb should I get for the Ipad air?

probably 32GB

16GB vs 32GB vs 64GB: Which new iPad storage capacity should you get?

http://www.imore.com/2012/03/08/16gb-32gb-64gb-ipad-capacity/

How much content will fit on my iPod or iPhone?

http://support.apple.com/kb/HT1867

How Much iPad Memory Do You Need?

http://ipad.about.com/od/iPad-Tutorials/a/How-Much-iPad-Memory-Do-You-Need.htm

 Cheers, Tom

I'd go 32 GB

Videos use lots of storage..

   when you are out of space, you are out of space..

    you'll spend lots of time copying stuff to computers..

      especially if your computer has only USB II (not III)

       you'll regret having only 16 GB..

Haley the best thing to do is to get a 32, if u use it for work or school and u know ull need space for documents and music etc then get the 64 just to be safe.

It is better to have more storage than you need, rather than to need more storage than you have......

(Mind you, the OP seems to have done the conventional disappear.)