Awesome that there is a thread about this. I originally ordered the 32gb 3g. I panicked and 4 hours later canceled and ordered the 64gb 3g. Now a week later I am wondering if I went over board. My thinking went in two directions. First the larger size I get the easier it would be to sell. Then I thought I don't really care about selling, I will just pass it on to my wife. . I then thought why would I need 64gb when all of my consumption will be via streaming and I plan on using google docs, skydrive, dropbox, etc. So here I am thinking what should I do??? The problem is that the money is not really an issue, I just hate feeling that I made a bad choice.
Do you plan on gaming? iPad games are running upwards of 200MB per app. I have a LOT of music on my iPod Touch and it filled up really fast....I got the 64GB and I have put a ton of music on it and all of my photos and I still have almost 45GB left....I really appreciate the extra space! Now I have no need to worry about what I put on it.
Everyone has their own opinion. Personally I feel when it comes to technology, buy the most you can with what you can afford. 64GB may seem like alot now, but in a year you may have a ton of app's, music, movies, books, whatever and 64 GB may not even be enough. Keep in mind, app's for the ipad are larger than for the iPhone. HD movies also take up more room. I even ordered a airstash just to be sure I can always expand my memory. Bottom line, if you can afford it, more is always better.
I got the 64 too. Figured I'd fall in love with the thing and curse myself when I ran out of memory. Loaded 2 bookshelves of free books yesterday; took up very little memory. Will load some movies if I travel, though.