If you owned them all it'd not be a proper economy to use for people. Sometimes a lower price is a good thing for people to get involved
Where can I trade blackcoin? I can't find a list with exchanges

I prefer cryptsy, its been on there for ages now and you can set orders no problem. Secure long term place with sms authentication, business based out of Florida I think so thats my preference for most coins anyhow
for the recordI have been on Cryptsy since 2012, majority of my BLK was purchased there between 0.01 USD and 0.19 USD during the first pump. I just strategically day trade and invest in some cloud mining occasionally when I get good backdoor returns (Potcoin, DASH, VTC and LTC). I would recommend Cryptsy as long as you're patient with the long times it takes to transfer funds out of the exchange wallets at times.