a little worry about that SYS mined per day will be worth ~7.6btc .
According to the statiscs from Poloniex , there are only XMR, CYC,XBC,BBR trade volume beyond 7.6 BTC. most of coin are less than 3 BTC.
Especially the Viacoin only 3.5 BTC trade volume today.
I prefer to mining syscoin rather than buy it.
Why would you only look at one exchange (and specifically PoloniEx)?
Bittrex has 23 coins with over 7 BTC trading volume at the moment.
Cryptsy has 14, Mintpal has 13...
If you look at CoinMarketCap.com you will find 50 coins that have traded at 7+ BTC in the last 24 hours.
Hope that helps...
It's the wrong thing to look at anyway. Volume is just shares changing hands. To keep miner-dumping from lowering the price, you need that much *new* money coming in every day. Very few coins sustain 7.6 BTC in new investment per day, every day.