I know they aren't "worth" anything, but hell...most of what we collect really isn't. Curtis quoted me both of these for $5. It was well worth the $5 for the nostalgia I get from these bad boys.
Did you collect SLUs back in the day? Do you still have them?
If you shop online and haven't signed up and used ebates yet, you're missing out. I also use it on eBay to get money back from purchases there. Between referrals and cash back, I've gotten over $150 in a year. FREE CARDS!