i got one from wally world, got the room enclosure to go with it. i only use it for nascar tailgating. up maybe 5-6 hours at a time. i use it 3 times a year. i've had it 3 or 4 years now. perfect for my application. mine has vents built in to keep it from flying off like a kite.
It doesn't matter if the glass is half full or half empty...there's still room for more alcohol....