Your comment is very misleading. Because a trader always does this, an investor always keeps buying until they have enough Bitcoin in their portfolio. It is never a good idea to wait for DIP purchases or any of these opportunities to invest. Always invest for the long term and keep investing until you have enough Bitcoin in your portfolio. And hold your holdings until your time limit expires.
Buying the Dip is not a bad idea, as an investor getting bitcoin at a lower price is what everyone is always hoping for but what people do is that wait for bitcoin price to dump before they should start buying. If you are investing in bitcoin, then their is nothing bad in making use of DCA strategy, you can be accumulating bitcoin gradually, and if you are finally stable, you can still have some money which you will keep for accumulating more bitcoin when their is dip in the market.
If you are expecting bitcoin to dump to a particular price before you invest in bitcoin, then that means you might not be investing in bitcoin, because you might no longer see bitcoin at the price which you are expecting it to dump to, and that’s how you are going to be missing out.
Furthermore, long-term investments always range from 4 to 10 years, so you are assured of a better profit because if you are able to invest for that long period of time, then it will be very easy for you to get a reasonable profit. Take an instance of Bitcoin's price in the last 4 years compared to the present price; you know that is a very good profit, which is also the same when you start investing today by accumulating the little you have for the next 4 years coming.