Thank for the replies!You probably already know this but there are a couple of manufacturers that make a Yeti like cooler for half of what Yeti charges.
Another thing I did to improve a basic cooler is to use some 1/2 closed cell foam mats and cut them to fit tightly inside along the walls and across the top.
I've also read that a sheet of Reflectix cut to fit on the on the underside of the lid helps.
But yes, there are lots of other options out there besides Yeti. I believe that the Polar Cap coolers from Cabela's (and made in USA) have been beating Yeti in some tests. The bad thing about the Cabela's coolers (in my view) is the massive handle on each end...definitely not as sleek as a Yeti, but probably easier to tie down.