Ok. So last Friday I went to Walmart and bought myself an iPod Nano 8GB. But now I realized that it's battery doesn't really last that long so I began to look into the iPod Classic. I know that has a 36 hour battery but I think it may have WAY too much capacity for me. I barely fill up 6GB on my new Nano. But the bottom-line is, my major concern is the battery. But is the iPod Classic really worth the $100 more for +12 hours of battery?