People who always wait for the price of bitcoin to dump are those who get panic of the market when the market goes dip after they might have bought bitcoin, I think people who wait for bitcoin price to drop are not serious investors, all what they think about is just to make quick profit. Waiting for the price of bitcoin to fall to buy bitcoin is something that might keep some people waiting and they miss opportunity of time which they can never get back again.
People who always check the price to invest bitcoin won't get it right because volatility will always be a reason for them to fear. Their is no perfect time to invest bitcoin because their is profit to any bitcoin that is bought at anytime.
Everyone usually have their own strategy while investing into Bitcoin, it's not a bad strategy for an investor to wait for the price to drop before they can buy some Bitcoin. If for example, someone wants to buy Bitcoin at $52k, it's not a bad target price, with the current market situation it's very possible that price can still drop to $52k, so the investor only need to wait but while waiting, I still advise that the person can use the DCA strategy to start accumulating small fractions until the expected price is reach, then he can buy a huge amount at that price. Like you said, the market is very volatile, if an investor keep waiting for a huge price dip, the market can keep surging even higher than the person had expected. So, instead of waiting for a huge dump in price, they can still buy small fraction.