What little I've learned from him...there are old houses...plaster walls and such. They get torn down and most of the time when plaster walls existed the rules were a little more loose. Guys would drink on the job and stuff their cans into the walls. So these house get torn down, remodeled and such...these crazy beer can collectors have paid over $100k for pristine cans stuffed into the walls. The high value cans are from small micro-brews from the early days whose life span was no more than a year or two. He said that with the deep cold water the cans in folsom are kept in pristine condition.

He has given me a few cans he's got in a few purchases for helping him out on a few favors that are well above $100 per can. I never knew this world existed but there are quite a few collectors that are willing to pay HUGE amounts of money for cans that are in perfect shape or are extremely rare. And from what I've heard, rare unopened cans are worth even more.

But they have to be the right can from the right time period, the right top and the right print/logo/brewery. It's weird....I haven't been able to really decipher a pattern. A 1930's can in pristine shape might only bring you $25 while some 1-off micro brew from Milwaukee from 1972, banged up to shit and rusted to hell will bring $25000 because they only had 1 production run with that particular can.

I have a feeling you should be looking for something like this...