Well, I spent the $350 because I can use it as a casting platform on my Carolina Skiff. It has not skid pads on the bottom and has attachment points if you need to use them. For pure cold ice, the Coleman Extremes from Wallyworld are awesome and do keep ice for a few days at a 1/4 to 1/5 of the price.
I find the 5 day coleman to do the job very well. If there was really a correlation between the price and number of days I would buy one. Even then I would be worried someone would steal it if it was in the back of my truck.
