Yes i believe that now a a days is the best time to invest a huge amount because the price of bitcoins today is down to $7k dollars again and anytime soon it can grow again just like what happened last month.
Could be. But nobody knows for sure, what Bitcoin's value would be within a short amount of time. With the recent decline in Bitcoin's value, I think that new investors will quickly jump in to reap the rewards in the future. Compared to last year's All-time-high, prices are quite cheap these days. But, if you invest a lot of money into Bitcoin, and then turns out to decline further in value, you would've lost everything.
Therefore, Bitcoin is highly risky as a short-term investment, which I recommend that you proceed with caution if you decide to buy it today.