This "POS reward" is such a bullshit. You are not paid in Bitcoin. You are SELLING your Bitcoin to get some shitcoins that have inflation, and that inflation (POS) is paid back to you in the shitcoins. And guess what? Long term the value of any altcoin always goes down comparing to Bitcoin, no matter how good that coin is. So yes, you got 50% more shitcoins in POS, but by the time you get them they cost much much less in BTC.