just so i can understand the PoS
now if i hold a 100 BC for a year, its will be 101 BC? a 1% a year? thats all what i will mine by holding stake?
Yes, but what if BC would 1000x in a year - a $10,000 investment now would mean $100,000 in interest every year, enough to live comfortably for the rest of your life.

Now, can BC 1000x you may ask, well, the price is still about the same it was a few days after the launch! It was selling at 3000 satoshi in the beginning, so the way I see it it hasn't even moved at all yet!