agreed. i was stuck paying $9 for frozen rats, but i finally got around to going to a show and bought in bulk. so in the end, frozen medium rats equaled about $1.50 a pop. Its a bit of an investment up front, but you save a ton in the long run. Now the trick is making sure nobody opens the multiple bagged item in the back of the freezer....
edit: oops sorry i didn't see that he doesn't eat f/t. But pretty much the same recommendation. how hard have you tried to switch to f/t? and honestly if youre still going to feed 3-4 mice every two weeks at $1.50 each, you're not saving much money by not getting a single larger rat. Plus, at petco i got a $2 off coupon almost every other visit that could be used on rats by having the petco card