Using dca method clearly helps eliminate what you're suggesting,an investor especially one who uses this method is never late to invest and whether the price goes up or down you'll realise it's a win-win situation for you,if you buy and the price drops then it means that when you buy the dip your average becomes way lower than you even projected which is also a big win for any investor
Therefore you should focus on how much you can buy at any given time and not necessarily the current price or what the price was a year ago
That is the difference between buyers with the aim of collecting more Bitcoin or a certain currency and buyers who consider a certain price more when buying at a certain time. Although the DCA method itself has become more suitable in the application of buying for any purpose, just in terms of use of the method it seems to be used more often by buyers whose goal is to collect more than buyers who only want to take a certain amount of profit after hunting for certain currencies at low price levels when there is a moment of falling prices in the market.