When is better to buy crypto, on pre sale or on ICO? When you buy on presale, you can get good bonuses, however when you buy on ICO you have a better gurantee not to be scammed.
yes, as you say. so any speculation is always at risk especially investment in ico. so that's why I always check and be patient to find the really good and potentially after the analysis. and it is not easy, it takes patience, knowledge and experience.