It is very clear that someone who didn't buy when the price of Bitcoin was below $100k will never or may never buy again because the price is appreciating every now and then and how would they buy at $118k when they could not buy at $90k plus. The more they are waiting the more opportunity they are forfeiting and the more the fear and procrastinating spirit in them will keep growing. Bitcoin has break a new all time high ( ATH) and it will continue to do so because it has the potential, it will be an interesting thing for someone to see the potential of Bitcoin and utilize it so that in years or time coming when other will be running around they will be relaxing and enjoying their hard work.
Buddy there's something I want you to understand, some who couldn't buy when the price of Bitcoin is low can actually buy when the price high reason being that such person may not want to be left behind again because of the mistake he made earlier, he might also learnt his lesson and may be advance his knowledge about Bitcoin investment to know that he don't actually needs to wait it dips to the price that he is comfortable with before he can invest, some people that you see investing without minding the price status of Bitcoin currently might be those that wanted to wait for total dip which is impossible and later they realize that they were not getting it right and decided retrace there step by buying with the little the can steadily since they now understand that Bitcoin is a futuristic investment that has the tendency of upsurging to highly unexpected amount in future.