30oz Tumbler Yeti vs Ozark Trail Comparison HOUSTON - Yeti is to coolers what Mercedes is to cars: A luxury brand many consumers swear by. People pay more, because they believe Yeti products keep drinks colder longer.Consumer expert Amy Davis from KSAT 12"s sister station, KPRC-TV in Houston, put the brand to the test.Davis purchased the Yeti Rambler Tumbler for...