Or even just the meat that isn't practical to farm. giraffe meat is apparently sweet and was described by many big game hunters as the best tasting meat they've had. No one's starting up giraffe farms around here, but if you can just get a tissue sample and start mass producing it, we can all have giraffe steaks, rhino burgers, and barbequokka™ at our next cookout.

[off topic]

The Freshman is a movie starring Marlon Brando and Matthew Broderick. Part of the plot is that the Mafia is holding underground dinners for the 0.01%, offering endangered species as the main entree. The twist is that the Mafia is serving them domestic goat meat, because it's much easier to lie than find and smuggle endangered species.

I think one of the first commercially viable cultured meat products will be celebrity burgers. People aren't going to spend a bunch of extra money on regular beef but they might spend $40 on Kim Kardashian's ass meat.

So... is it cannibalism if you lab-grow a human leg?