Current price of 10 GH/s on cex.io is only worth 0.07 BTC or about $30 USD... Your prices are more than double, plus cex.io allows you to sell those GH/s in the market whenever you want.
Cex.io also charges trading fees, and maintenance fees per GH/s (
https://cex.io/maintenance). We do not.
Also our prices are in the Canadian dollar and there's are in the US dollar.
Cex.io maintenance fees on 10GH/s work out to $31.20 a year. + the $30 to buy means that 10 GH/s at Cex.io costs $61.20 USD. When you convert that to Canadian dollars with fees it works out to around $70.
So in actuality we are the same price on our small plans and our 100GH/s and 150GH/s plans are
cheaper than theirs. We just bill all at once in upfront pricing, and provide nodes to help the network.