I like the way you think!
For me - it's the exact opposite, Shameless.
I actually have well over 80GB of music, so there isn't an iPod available right now that will hold my entire collection.
I keep going back and forth on the small Nano since it's part of the RED campaign and the U2 iPod since it looks cooler.
What's the difference between 8GB and 30GB when I'm not going to be able to have it all with me anyway?
At this exact momemnt, I'm leaning towards getting the U2 iPod and making a donation to the RED campaign separately.