I used to buy my bitcoins each fortnight on payday but the fees add up over a year of doing it that way so i now op to get paid about half my wage directly in btc, no more fees 
That is a good move for you, buying is too expensive while if you can earn it the better, we should focus on our way to earn bitcoins rather than buying if we don't really need that much. We only buy more bitcoins if we will use it as our capital in doing day trading and investing a huge amount of money.Focus on earning not on buying?? If all people will do that, then the price will not move.
Please keep in mind that price is moving because dollars are inserted and circulating in the bitcoin market. Without it no such price fluctuations will happen.
Price has gone down now so I think many people will prefer to buy with this price which will eventually take price again higher, so its better to wait and watch the price movements.
I agree with that. That is a good price to buy some bitcoin at around $540. So I will set a buy order there.
Yes this is the good price to buy bitcoin as price is low now and we can afford to buy at this price and price is expected to go higher in future which will help in earning good profits.
Even the current price of $580 is a good price to buy the bitcoins. I think the price will rise to $600 next week.
This really is a good time to buy a bitcoin for a few more days bitcoin will continue to rise.
That could make a profit that results are quite good.