I also think checking price before buying Bitcoin goes against DCA strategy. DCA means investing fixed amount of money regularly no matter price. It is about investing automatically and not making emotional decisions based on market ups and downs. By not worrying about price we avoid delaying and missing chances. Buying low can lead to bigger profits but waiting for perfect moment can lead to indecision and lost opportunities. DCA helps us invest steadily and reduces impact of market changes. It is a way to invest smartly and avoid making emotional decisions.
This best explains the kind of philosophy one should take into its mind when one is going for such type of investment. The DCA approach is not designed for those who panic whenever they intend to invest in Bitcoin, not for those who are unsure of the process and not for those who are greedy. Everything boils down to one's mindset since it will greatly influence the nature of decision which will be made by the investor. DCA is yet one of the best approaches to a sustainable bitcoin investment.