Well, first of all, that snake is not worth $600. I'm not boasting or anything, but my blood was $350 shipped and came from high quality blood lines and looks a lot nicer than that snake. Secondly, if you have done your research, and have the ability to care for a blood, the decision is up to you to buy it or not. $100 is not a bad price for a set up and the snake. But Bloods are not for beginners, so if you don't know what you're getting into, my advise would be to not buy it. Also, i am always slightly wary of buying animals off CL.