I ran a stack of subaru cats past one of the facefuck buyers, he was consistantly $30 a cat lower than the usual buyer, but he would pick up vs me driving an hour to cash them in. Seeing as he was $600 lower on the load of 20, it was worth the drive.
Had an 09 prius get junked that the guy had already cut the cats off of, he was all proud that he got $800 for them from the traveling cat hunter. Asked the usual buyer what the cats of it was if I brought it in, he said $1k. One of the other holy grail cats is the 4 biscuit ford off an older Superduty. Usually they're 3 biscuits in a big torpedo shaped cat. Finally found a 4 biscuit, but once it was cut off discovered one of the biscuits had disintegrated and disappeared. Still a good payday by weight, but not top dollar.