Buying btc for selling in higher price and also i am buying bitcoin for transfer money, because bitcoin fee is very cheap. You can compare with other payment method.
Yes. bitcoin have pretty much smaller fee then other payment sources. like paypal, payza, skrill etc. and using bitcoin also safe then others. paypal funds are reversible but no one can reverse the bitcoin once they sent..
Didn't you know that reversible is helpful in most of the cases? It depends on the situation where we need that most.
But for fees Im agree that bitcoin transaction is much cheaper but take note of the exchanges that you will used. They are adding some fees (together with their own btc = usd rate) because of their services but not that high to consider.