Nothing is worth collecting now. Seriously. I had many things from the 'old days' of computing, and no one wanted them. Sheets of core memory, ancient (even for me at the time) equipment, old hard drives that could almost double as boat anchors. All of it gone. Disassembled and recycled, or just trashed. Even a working Digital Vax computer. Such is the 'march of progress', and the myopic view of the now, and dismissal of the past. *sigh*
GET OFF MY LAWN! TURN THAT CRAP DOWN! WHAT'S WRONG WITH KIDS THESE DAYS?!
But iPods were ubiquitous. I've seen young kids sporting the latest of iPods on flights. Parents showering them with tech. Saving an iPod for it's 'collective worth' IS ridiculous. Unless it's a prototype, or a rare left handed iPod ;-) it's not going to be worth anything until aliens land and start excavating this planet and find one (not likely working) and wonders what it was for, what civilization created it, and what it did. Then someone (something?) offers them their local currency for it because it's interesting looking, and the first of its kind found. It should be in a museum, their version of our movie character, Indiana Jones, yells to the void.
Yeah, as I write this, I feel silly having hurriedly bought a 256g (RED) Touch. One of perhaps tens of thousands bought in the impulse to own the last one. Don't save it, USE IT! Celebrate the capability, celebrate the power those devices gave people of the time. So many songs, video, 'content'... I loved to travel and I always had an iPod (perhaps several) with me as they were the ideal travel tech device and on long flights, they saved iPhone battery. I find the iPad cumbersome when compared to the iPod Touch.
Collect them for the fun, not a retirement investment. Rock on!!!