I guess the best time to buy altcoins is bear market and for pre-ico so i will get more bonus i'm sure this is what you are waiting for if you guys choose to buy more tokens on pre sale you can get more discounts and btw the market is green so choose your coins wisely.
I think, this is a difficult question for many. few can argue, that buying a coin is worth a specific period. I believe, this is an independent process from anyone. Here in crypto, it is always flactuating and difficult to get a timing.