We are gradually moving into a new century where a new exchange mechanism would be put in place for global exchange of commodities. The best time to acquire a coin is now.
I would be careful recommending a buy/sell recommendation just because the market cap of the crypto market has risen to a certain level, it doesn't really make sense for the newbies and they might think that this is the "perfect opportunity" for them to jump in when the truth is buying cryptocurrencies now is a risky thing when the prices have already gone up and they won't be having any margin of safety with their position. Majority of cryptocurrencies are now consolidating near their ATH and there is really no guarantee for them to earn anything at this point.