I have 5 snakes and by calculations i spend almost $70-80 a month if i buy all live. I buy 1 md rat @ $6, 2 sm rats @ $4 each, 1 weaned rat @ $3 and 1 small adult mouse @ $2.50. sometimes i skip the md and go with another small. i did buy a pack of 30 weaned f/t but none of the boys wanted it this week which surprised me because last week all the boys took them, so i went and bought live. also i started a small colony of 1.2 rats to see what happens.