Right now buying this coin from exchange is better option then to mine it. See the price it has drastically gone down and there is no better time to buy it then to buy it now but for long term. There is little chance that it may go up in short term but definalty a good one for long term.
If you are thinking to buy this coin right now then keep the price history chart of this coin in front of you before making any investment move. Its very much down these days, though I cant say its dead or wont come up again. Just invest the extra cash you have in your wallet in this coin, dont go for heavy investment.
Lots of us make this mistake of not investing in coin when its down and out rather we invest in coin when its at its peak. So if you are thinking to invest in any coin then invest it when its at its bottom not when it going up. Rest do your own research before you invest in any coin.