It is normal dear, usually, the pre-sale investors need to wait for a long time and secondly they have to invest big amounts of ETH so i think they definitely deserve some good bonus and yes majority of crowdsales nowadays are following this model.
They gave away in presale 1010 tokens for 1 ETH and now is 505 per ETH?! is this a joke? taking to consideration 505 have 20% bonus
so presale was for 70% cheaper?
NO WAY?
All presale chaps will dump those tokens on first possible occasion... no fucking way I will put my money in this project now!