I've actually sold almost all of my older iPods (out of necessity at the time), but this is what I have/have owned:
Currently:
• 30GB iPod Photo (sits on my iHome alarm clock permanently...quit working one day after I had a nano, so I tossed it in a drawer. It was completely non-functional. Maybe 2 years later, I couldn't find the nano, so I connected the Photo for the hell of it and after the battery got the minimum amt of juice, iTunes recognized it and it fired right up! It's name in iTunes was Lazarus after that.)
• 16GB 4G yellow nano (used in the car)
• 32GB white iPhone 3GS (used for everything else)
Past:
• 4GB 1G pink iPod mini (First-ever Apple product. After a year, I cracked the LCD screen in an horrific accident...it was like watching
myself bleed as the black goo oozed slowly out of the crack over the next few days. Still worked, though. Gave it to my mom, who used it basically as a shuffle.)
• 6GB 2G green iPod mini (gave to my brother when I got a nano)
• 4GB 1G white nano (exchanged at Best Buy after it inexplicably quit working)
• 4GB 1G black nano (what I got in exchange for the above.)
• 30GB 5G black iPod Video (at least I think that's what it was called at the time--it was the one with Jack Sparrow on the box. Sold on ebay.)
• 80GB black iPod Classic (sold on ebay)
• 16GB 2G iPod Touch (sold when I got the iPhone)
• 16GB 5G pink nano (decided to give it to my mom, so she could give her 2G nano to a friend who's going through chemo...music helps distract her)
I actually had all of the boxes until I moved about a year and a half ago; I convinced myself that it'd be stupid to hang onto them since I no longer had the devices. Argh.
And I'm currently bidding on a 6GB 2G pink mini, just for nostalgia's sake.
Rest of the family:
Mom: aforementioned pink nano
Dad: 4GB 3G black nano
brother: 16GB black iPhone 3G