Is your gpu mining rig going down profit !!!! you should read this article

So many miner are quitting their mining business because mining Difficulty rising up too quick .
Such as Bitcoin , Zcash , Ethereum , Dash and many more .
Many miners are mining coins on their values it's not bad at all .
But when your gpu mining rig going down profit , what should you do sell it or continue to mine !!!!
It's up to you .
You can sell your old gpu and buy new gpu .
OR
You can continue to mine different coins at lower Difficulty .
Reserve it and sell it when it up in coin market .