Thought I'd see if there were any likeminded individuals around.
This is three of my small collection that I have with me at work. The 4G Classic (left) is modded with 64gb, the Mini is 128gb, and the 7G Classic is currently in need of storage and battery. My plan for that one is to give it 512gb and as big a battery as I can squeeze in there.
I’d love to have an iPod Touch, or an iPod Shuffle, but the first is too pricy for what you get and the later is unfindable at a reasonable price.
I have a 4th gen Touch around here somewhere, but it's not in the best condition. Also, the fixed storage means they're kind of uninteresting to me. All you can do to them is replace the battery.