It is; that's my point. As mattkrause notes below, that number is for mice with human tumor xenografts. You have to harvest a human patient's tumor, blend it up, and inject it into immunocompromised mice. If you buy them from the vendor who has to buy their tumors, pay their labor, and make a profit, they're not cheap. If you have ready access to clinical tumors and cheap labor, the price drops precipitously to ~$70.
By the way, you can poke around some of the animal vendor's sites. They mostly have their pricing on their websites along with a bunch of other information. Four really big ones are Taconic, Jackson Labs, Envigo, and Charles River.
By the way, you can poke around some of the animal vendor's sites. They mostly have their pricing on their websites along with a bunch of other information. Four really big ones are Taconic, Jackson Labs, Envigo, and Charles River.