I have a little freezer I keep in the basement for surplus feeders; I think it cost me $60 off Craigslist. I can't remember what brand it is (and don't feel like going down to look) but it's the size of a dorm fridge.
I don't use it all the time though, mostly when I'm building up an order for one of my buyers that likes to buy several months worth for her 9 snakes at once, or if I go shopping and don't have room for all of MY food and the frodents.
Luckily I live alone, so no one to complain about dead animals in the freezer, but I see no difference in having dead chickens, cows, or pigs in your freezer versus dead rats or mice. As long as it's all contained somehow....but some people are just grossed out, *shrugs*