RPCookin
Executive Chef
I bought one of those rolls at Costco when I was in college, it's still going strong and that was almost 20 years ago.
We bought one from Sam's quite a few years ago. We used it for at least 5 years before moving out of the US, and because we were uncertain when we might move back, we bought a spare. Now more than 2 years later we are back in Colorado and the spare one still hasn't been opened.