What are unopened can of treaty beer worth?

Oh, dude, an unopened can of treaty beer is worth about as much as a half-eaten bag of stale chips - not much. Like, sure, it might have some sentimental value if it's a rare brew or something, but in terms of actual cash value, you're probably looking at a few bucks at most. So, if you were planning on retiring early with your collection of unopened treaty beers, you might want to come up with a new investment strategy.