Waiting is not an investment strategy, especially with bitcoin.
Good luck if you believe that waiting is a good investment strategy, you are likely going to need it, since you may well end up regretting that you had failed/refused to prepare yourself for UP.. and you were too busy preparing for down that did not end up happening as much as you had expected it to happen. It probably sucks to be you, especially since you seem to not to recognize the importance in accumulating BTC.
What you say is very true, if we continue to wait until prices fall before investing, it is very likely that we will miss the opportunity that is in front of us and we will really regret this when other people have taken advantage of what they invested.
If we wait for the price to fall before investing, of course this means we have to be able to buy it in large quantities and this will also be very difficult if we don't have funds that we can use to invest.
For some people who really understand Bitcoin investment, of course they will continue to try to collect as much as possible to get a profit when the price goes up and if we don't prepare ourselves of course we can only see the success that other people get and we don't get any profit.