In my opinion any investment is good these days, because the bitcoin is gonna rise soon or later.
What people already said is that good to consider to buy more bitcoins for a long term because you are gonna hold them long and maybe the price will never be so anymore again.
That's right, by now we should have kept atleast 1 bitcoin..With it you can earn a lot when you learn where to invest and to trade...So it is a good investment to buy 1 bitcoin today even if the price is this high, you will benefit from it in the coming months..