They keep stuff cold. Aaaannnd...When you go in multiple times for other stuff and remember "damn I have no more beer" and then one day, you happen to look in the dark recesses of the fridge, behind the kale you never eat and the water jug to find a lone, amber coloured object staring at you and finding a long lost BEER! What's not awesome? That doesn't happen all the time. Sometimes you're actually out and you keep looking in the fridge thinking you may be surprised once more.