It's better to invest in bitcoin than never, not just bitcoin but also other cryptocurrencies. Imagine if we invest way back 2013 with prices spiking as high as $1,242 in November of that year before retreating, REGRESSION 
. Hurry up and invest.
why mention 2013 when we can use 2010? when there are no Pumping and dumping that high and the price is still really amounting like Peanut?. Hurry up and invest. but are you suggesting investing now because the market is in red blood again?
i am not anti investing in obvious bull market but what you are seeing now is just s small part of the high increase just this year.
so if you are aiming for perfect Holding then best to at least consider 20-30k value before entering and not now that the price is obviously settling in good position.