As in, they're having the USPS deliver bottles of water to their house? Is that what you mean?
If that's the case, then FUCK that. I buy way more shit from Amazon than I should, but its mostly because I live like 25 minutes from any kind of well-stocked store. But water? Jesus christ. Spend $200-350 on a really nice filter and just drink your goddamn tap water. Maybe you don't even need a filter. It was bad enough when they started selling it in plastic bottles, but now they need to have it shipped across the country too?