Damn buck, I released a ton of Cu when I was cleaning accounts out for sale last month. I typicalls sell a red Cu off the bat at 500k. I was really never able to get more unless it was amazing stats (I've sold one at 8mil before) but I had to transfer ALL my pets to Atlantic for that.
My account arn't selling so I've been playing midly the last few days. I usually hunt Cu on the weekends so if you don't have a red one by this weekend I'll save you one if one spawns!