i don't know, i've never really looked into roaches so i don't know how to even think about a price but for 2000+ roaches and all the equipment, hell i have no idea. Ask him what he wants for them and then low ball him. You ever watch pawn stars or any American Pickers, you just work them like that. Basically determine how much you are will to pay, offer less than that and then work up till you hit your set amount and see if you catch a deal. Some people will wheel and deal others won't budge.