So I ordered my 32GB earlier this afternoon (still in processing for whatever reason). I was pokin around a few threads, and I was surprised to see how many people are getting the 64GB version. Reasons seem to vary from newer and larger apps to photo/video related concerns, to just plain old futureproofing. Did I make a mistake by not purchasing the 64GB version? And if so, could I go back and change it? Also, what would the total be (for a new line w/ the lowest data plan to get me the upgrade prices). I know the 32GB is floating somewhere in the $350s so I'm guessing the 64GB would be in the $450s?