Many blind haters claiming PoS coins to be a scam.
But IMO the PoS coins will be the future.
So buy NXT or QORA.
Also XCR and NODE seem like very nice investmnets.
Its up to you!
And NEM is exciting too. They are making PoI.
Also month by month more non-PoW crowd out PoW when examining the top ten. Right now 50% of the big ten aren't PoW. Each month it seems like another non-PoW makes it to the top ranks. In a year I think besides bitcoin and Litecoin there won't be any more PoW in the top 10.
PoW if you think about it is just stupid because you essentially waste huge quantities of energy just because the algo requires this.
PoS is a next step in the right direction, where you have decentralized P2P network and don't have drawbacks of PoW.