Somehow I have managed all my life without needing a four day cooler.
No Yetti's (plastic or otherwise) for me.
The Igloo Marine cooler I use for fishing keeps ice all day and cost me very little at WalMart.
I like it because it is light in weight and the top hinge cannot break.
One can buy a lot of other stuff with Yetti money.
My son put a Yetti sticker on his Igloo cooler so it wouldn't picked on at cooler camp.