I have been breeding these for awhile, and it's near-free snake food. I spend $4 a month for a huge bag of wood shavings, and perhaps $5 a month on a bag of rat feed blocks. It'd cost me more to buy rats at the pet store for one week!
First tank holds a pregnant female. Second has the weanlings from the rat in the third tank's last litter; the male's in her tank now. I clean them weekly and it takes 5 minutes. Water-filled fabric softener bottles and a rubbermaid housing my tiger salamander hold the screen lid closed!