I had a debate with a friend about which is better, purchasing a token new token before its listing on an exchange or the moment it gets listed.
If the token has good potential, then accumulating before getting listed on exchange is better than buying the token after it gets listed.
There's a lot of perks buying on the presale. The presale has a bonus stage, like you can have 20 to 30% if you bought in the first round of token sale, its different when it gets listed on exchange; you have to rely on the sell price of those who bought it first, usually they are selling a portion of what they bought in the presale for profit.