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I am getting 16GB and no regrets (offcourse I can use more space).

My most space eating activity is camera/photos - so I sync pretty much everyday and move photos from Phone to iPhoto.

I had 32 GB - what I noticed was at the time of resale there is not much of difference between 16GB and 32GB - and given that apple releases phone each year - no point in investing in 32GB and sale it to price similar to 16GB

YMMV :-D
 
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