Beneficial in the bounty but not always. Because the project will give you their coins if they can reach their goal. In that case 3 to 4 months is a very short time. The pre-ICO starts for 1 month and then for 2 months is ICO lasts. It takes 1-2 months for the coins to come to the exchanger. After all, you have to give a minimum of 6 months for any project to be a hit.