A long time ago i had a few snakes, a boa and 2 cornsnakes. I was also raising the rats to feed them. At that time i could also sell the rats to the local pet store. So it worked out pretty well, i had some cool pets and yet i wasnt overrun with young rats.
Last week on Craigslist i saw a rat rack and rats for sale. I thought, let's do it! So i bought them. Very happy with the deal.