because altcoins are sluts.
and its based on SHA256 hashing
But there are hundreds of altcoins .. Why Paycoin?
something about being backed by GAW and a few big investors and companies. They want to peg it to $20/XPY - which presumably will mean throwing millions of dollars at it while people dump the coins that are worth only $6 today. IMO its either a planned ponzi or will be one fabulous P&D where the investors get suckered by the free market. But that anticipated $20/XPY buyback price is why mining payoin is lucrative
You can hope for a profit and mine PAYCOIN or you can cloud mine Bitcoin at 0.0011/GHS and get a lucrative revenue that is stable or going up lately thanks to people mining PAYCOIN and BTC price going done.