A 2006 iPod (probably the 5/video?) 80GB retailed for $350, and I bet an (inflation adjusted) $530 today could buy you something with a lot of advantages over it. A lot of the android ones I'm seeing from a quick google seem to have battery life around a day, if nothing else.

Not that I think it would be worth the money given you're already in a good place, just saying the situation isn't as bleak as you portrayed.