Personally, I would go with the sale items (45%), because the 6 can of premium meats will always be there for that price, or close thereto.
However, I did find freeze dried pork chops $43.50 for 33% off http://www.nitro-pak.com/product_info.php?products_id=1724 and just to get to the free shipping for purchases over $100., I'll buy a second can and, astronaut neopolitan ice- cream bars a 12 pack for $20.40... Still not wise?