As a Bounty hunter I once made a mistake by selling tokens from Bounty that I received in a small market for $ 250. After 20 days the price of tokens that I sell is worth $ 1200. So the conclusion if you want to wait you will get maximum results. Believe every ICO project will prepare a good market in the future.
I disagree with you on this because not all newly listed coins do well in market after days of listing them. No doubt, some of them go up in price after listing but it will interest you to know that most of the coins that are been listed currently go down in price and you will regret not selling early. My opinion.