I have a 64GB and it is great to have all that space. As I am a professional musician, i Have about 45gb of music. I have lots of PDF documents. I don't regret at all the 64gb ipod.
45GB of music?! Wow, that must be an amazing collection. I don't have much at all, but would like to get more, definitely.
I'm guessing most of it is pretty high-quality stuff. Non-compressed audio files ranging at what, 10 megabytes per minute? If I were a professional musician, I probably wouldn't touch an mp3 with a 10-foot poll.
Yes, 320 Kbps. I am not an audiophile. I care more about interpretation than just sound quality, but I have good ears and 320Kbps is the minimum. My earphones are good. I have about 120gb of classical music and about 2GB of popular music. So, I am very happy to have a 64GB ipod, so i can listen to different interpretations while on the move.
I LOVE my 64gb because of the space, I can now have plenty of apps AND music which was getting neglected. Don't sell it is my advice, you will regret it I think. Be glad you have the largest capacity ipod touch!