Plastic bottle water expires every year. So if you have to replace your one bottle of water for a new one for 50 years, that would cost you $25 if each bottle costs you 50 cents. That easily costs more than 7 times than one can of Blue Can Water. Furthermore, the cost might be even higher as it's likely that the cost of new bottled water will increase over the years. Buy Blue Can Water, and save the pain and hassle of having to replace your bottled water and avoid the problem of not being able to get water if there's a water emergency.