Now the discounts are gone. There were 40% on pre-sale. Now, if it is cheaper, it is possible only after entering the exchange. When the program of Bounty work will be sold.
At the pre-sale discount was 20%. 40% was not. Now tokens are also not expensive - 20 cents. When the project starts on the listing exchanges , the price may be even more expensive. You should think well when tokens are better to buy
Maybe it's the other way around. After entering the exchange the price will drop and the price will be more profitable for buying than now.