I used to collect Kool-Aid fairly seriously (as seriously as someone can collect Kool-Aid, I suppose). I had amassed a sizable collection of discontinued flavors, mostly from the mid-90s, but with a few dating back before that. I had about 150 packets, representing about 35 different flavors. The oldest piece in my collection is from 1970 or 1971. It's a pack of grape Kool-Aid presweetened with cyclamate, an artificial sweetener that excelled in every possible way except for the way of not giving you cancer and killing you.
Post marriage, kids, and house, I just don't have it in me anymore to collect much of anything, so this has been stashed away for the last ten years. I just dug it up yesterday and I think I've found it a good home. There's no real market for this stuff on ebay anymore, and I can't find quite so many collectors on the internet as I used to. I did find one guy who looks like he's serious enough to appreciate my collection, so I emailed him and told him I'd send my whole stash to him at my expense. He seemed quite excited, but honestly, I think I'm more excited to have found a good home for this. The alternatives would be for me to keep it forever, drink it, or trash it, none of which made me happy.