What price Corn Flakes? Well, it depends on what kind of packaging they come in. The amount of money that some people are prepared to part with for what's nothing more than a decorated cardboard box is incredible, but it's a collector's market where demand drives the price. To get the absolute top-of-the-market price for your cereal boxes, they have to be unopened. That means someone would have had to buy a breakfast cereal decades ago, put it on the shelf and then never eat it. It's not likely, but it could have happened!
We say 'decades,' but that doesn't always have to be the case. It's all about what's printed on the box, and how limited edition the print was. If you have a Sugar Pops box from 2009, then you could get nearly $200 for it, as that design was only used for one year. If you have a Shredded Wheat packet from 1966 in your collection, you could be looking at more than $1000 if you can find the right buyer.