I haven't pulled the trigger yet but I've been considering getting canned water.
I don't normally buy bottled water so I don't want to have to worry about rotating them, so $40 seems like a decent price to pay for emergency water in my car that I can trust for a few years. I'll probably keep them in a cooler to prevent freezing in the winter (despite the username, I'm not actually in Texas).
People don't buy it. You can get it but the price reflects the low demand.
Has anyone tried the water in a can? Supposed to have a 50 year life. Blue Can 50 Year Shelf Life Water https://www.amazon.com/dp/B00M9O9HTK/ref=cm_sw_r_cp_api_i_wfVtFbVXCQF00
They do - 50 year water ... http://www.amazon.com/Blue-Can-Premium-Emergency-Drinking/dp/B00M9O9HTK
and I swear I've been served plain water in a can on an airplane somewhere
Get a proper water filter/purifier for replenishing your supply. This stuff claims a 50-year shelf life: http://www.amazon.com/Blue-Can-Premium-Emergency-Drinking/dp/B00M9O9HTK