Whenever I invest in bitcoin i do look for the prices because that will determine the amount of coins I would get but DCA is more of strategy where you are investing some amount at fixed intervals no matter what the price are for example you plan to invest $100/month then you can do it any price keeping your accumulation phase long until you reach good portion of btc with you.
Before investment of cryptocurrency and Bitcoin particularly some body supposed to know the actual volume you needed for investment, is good to know the price of Bitcoin before you can invest for cryptocurrency so. I will like to understand why people like know the price of Bitcoin before investing for it, so that the profit will be known.
Those information can be found in coinmarketcap.com DCAing is often what people do when you have less money to invest. So every time they receive a paycheck, they buy a fraction of BTC most probably from an ATM. Or exchanges which is more convenient.
BTC had touched $25K today and then back to $24K, you can be assured already that it will also go back up to more than $25k soon.