That seems like a lot of money, unless you absolutely want fresh food in the middle of hot summer trips and are willing to pay out the money and put up with the hassle.  My book: it's not worth it.  

Being an experienced tripper, you know food spoilage isn't an issue in Fall and Spring.  We have fresh salad every night on our Fall and Spring trips!  

For all my trips I pre-cook any meat, like breakfast sausages, brats, and even hamburgers, then seal the meat with a foodsaver vacuum seal.   They stay good for 2 or 3 days, and longer on Fall and Spring trips.  Fresh cheese gets slimy after 4 days or so on August trips.  But it's manageable.  I bring in 2 smaller chunks rather than 1 big one, so one stays sealed for as long as possible.  I'm thinking about going to freeze-dried cheese, but haven't done so.  

Good luck!  

prouboy