the igloo marine line appears to have different models and costs, here was my experience: Cooler Opinions??
there is the cheaper "marine ice chest" that has a thinner lid with no latch, and the more expensive "marine cooler" that has the thicker lid with latches and somewhat better quality handles. i ended up with an igloo "marine elite cooler" i found on sale at West Marine (West Marine: West Marine Search Tool
), a model with stainless steel hinges and latch. the 72 qt. was around $65 when i bought it earlier this summer, and the denver store location actually had some other igloo marine coolers in stock that were not on the website - they might have a 90 +/- qt. model you are looking for.