The major thing we are looking out is how to manage the risk, like to narrow down how big we could lost during our investment. Like I said earlier, giving bitcoin much priority of investment is also a better way to narrow down our lost even though we may not get the required x amount but what matters is how low we can risk only little amount than risking the entire amount of our investment in the name of chasing a specific amount from diversification of coin. Bitcoin as i made mention gives us the low risk of losing our investment, then even though we must invest in other coin it should be only top 5-10 coin which i also think the risk level are minal and less effectives even though the market dump unannounced.