Whenever we start investing in this method we need to plan for long term so that we can maintain this investment method for long time.If one starts his investment with 50 dollars initially then he may be able to increase the amount of money in his investment later if he has financial solvency.
Dollar cost averaging (DCA) is the best as a long-term investment plan, with DIP to consider if you have a lump sum of money.If you invest in DIP, it will be of great help in times of crisis. If you have investments elsewhere, you can definitely invest in Bitcoin. It is sure that Bitcoin will benefit you greatly. So called fiat money will give you 5% or 10% profit but bitcoin will give you a lot of profit.
Currently we are in the bullish run so I don't know what dip you are talking about.
Are you mentioning the dip that occurs in short time frame like in 24 hour candles? Which is good if you happen to buy at that time but generally who pursue DCA usually invest when they have money which is generally when they recieve their salary so don't wait for the dip if DCA is your primary go to method but as said if there is money sitting in somewhere else then there is no better time to invest then than now.