unfortunately the price of bitcoin isn't really down to $ 4k, even the price doesn't touch $ 5k. Bitcoin's lowest price is $ 5900 and after that the price of bitcoin jumps again.
Why unfortunately? Did you want to buy coins cheaply? I doubt that you have the opportunity to buy a lot of coins. Perhaps you suffer envy to those who have coins. Don't waste your time on hate. Buy your few Satoshi now. After a while, you won't even be able to buy them.