But these are sold for outdoor use, like at the beach, or hiking, etc. If my can is room temperature, the I am very likely indoors already, with a refrigerator

But these are sold for outdoor use, like at the beach, or hiking, etc. If my can is room temperature, the I am very likely indoors already, with a refrigerator nearby. I'm not going to spend money on single-use chiller cans for typical day-to-day beverages. I'll just buy the normal ones and stick 'em in the fridge. Sure, there's some scenario where I might find myself in a temperate climate, and want a cold drink, and don't have an ice chest or fridge nearby. But does that happen often enough to make this technology viable? I just don't see it.