I called this morning to give him a chance and asked if hadn't perhaps been mistaken. He stood by the price though saying that he'd given me Nalga w/ no fat as I had requested (I requested no such thing--just "carne picada") which was 71 pesos a kilo (he sent me 1.6 kg for 115). He danced around a bit justifying it, but still didn't budge. I'm heartbroken to change, but I'm going to find another butcher.