I highly disagree with AuroraCoin no matter how much volume it has, that is the biggest scam coin there is at the moment
You are right, we should not add Auroracoin since the volume might be artificial, volume might collapse soon. We need coins that has been there for a long time and continue to be traded by other people.
Bitcoin, Litecoin, Peercoin, Dogecoin, and Namecoin. These are the most trusted coin so far.