and I am sure a time will come when you will say or someone else will say that "I think early investors who accumulated coins at price around $250 to 300 would get more benefits" as the price will increase more in the coming future so leave calculation and collect as much as you ca.
But these early investors takes more risk as the bitcoin might fail in the future. So they should be rewarded more.
It's not that they take more risk, they have got themself a very nice entry point in the market compared to those that enter the market at todays prices. If you look at it from that way, then todays buyers take more risk. But then again, early adopters are early adopter because they spotted the potential of Bitcoin at its very early stage and kept holding with massive gains as result.
Today's price of $650 is very good entry if you look long term. The price will be $1200 within a year.