With current GPU's only producing 80 cents each per day after electric/fees, don't think this thing is in my future.
I agree now that max with this board at current rates you can make 450 USD in a month. It's not worth to build a mining rig which would cost much more than this.
On the other hand though, I as a firm believer of bitcoin price going up after a few years I would build a rig with this motherboard, I don't care that I am at a loss in the beginning , who knows how much a bitcoin is worth after a few years so if you believe that bitcoin price should go up, you can start mining bitcoin with this board.
For the time being consider this money as lost in order to not feel stressed out.