Do you ever see Les Stroud drinking 409098 gallons of water in a day? This pack would be nice if it weren't for that ridiculous feature.
I only ever use 4-6 water bottles per Minecraft day via the camel pack. They look to be about 16 oz of water, but let's just say they are 32 oz for arguments sake. So 6 bottles x 32 oz = 192 oz, which is 1.5 gallons of water consumed per day which seems about right to me considering we are on a very hot dry planet. Seems pretty realistic to me, but I guess that's just my opinion..