Where I live commercially distilled and bottled water is about $1.00 a gallon which is cheaper than what you pay for a six-pint pack of bottled water. Oddly enough, of the two types of bottled water I currently have in my vehicle, neither of them has a use-by date. However, one of the two types of distilled water that I have in my garage does.

It's looking like the only advantage bottled water has over distilled is the individual (pint-size) packaging, which admittedly could be useful in some circumstances.

Regards, Vince