Buy the Dip and Hodl, that's the only way. Someone who saw it at 98.5k would think it will fall further as even the media predicted further fall before returning above 100k.
I know you are saying to buy the dip and hold is the only way because of the name of this thread, but do not be deceived by the name of this thread. Buying the dip is not the only way to achieve success in bitcoin investment, and since the name of this thread is to buy the dip and hold, you shouldn't focus only on buying the dip because it will delay you from starting up your bitcoin investment since nobody is certain if the dip will happen today or tomorrow. Since you are a lower coiner, you should focus more on accumulating bitcoin with the DCA strategy so that you would be at an advantage of consistently accumulating bitcoin anytime your money is readily available, which will allow you to accumulate more bitcoin than someone who is using the buying the dip strategy.
That is not the only way you can earn profits from BTC, but if you want to earn a big profit from BTC, buy dip and sell when the price is very high in the market, which is the only way you can achieve such massive profits from BTC because it will allow you not to sell in the low price until the high price occur before you can sell to earn massive profits.
If they are not financial buoyant, I guess waiting for the dip is the best option for such category of investors to buy BTC from the market because it will help them to buy plenty of BTC and hodl for the price of their desire to come before they can visit the market to earn profit. But if you want to use DCA to accumulate BTC, make sure you are financial buoyant because there is nothing that will make you sell your BTC in a short term than to continue to buy in the dip to accumulate BTC in your portfolio.
I think you are missing out on the bigger picture here, the DCA accumulating strategy best suit the low earner because it's a accumulating strategy that makes you to buy base on how much you can afford bit by bit, before you know it, you may have accumulated a lot, even more than what you expected from the very onset, but the goal is to hold for a very long period of time, because selling for minimal gains are just the mindset of traders not investors like us.
Then talking about waiting for the dip before making a purchase, I believe that jayguangee has already address that already, you don't need to wait for a dip before making a purchase of Bitcoin because in the process of waiting you may miss a whole lot of buying opportunities that may present itself, and you will be unable to add to your stash of Bitcoin if you have any in the first place, so it's very much necessary that you don't wait for a dip before you buy Bitcoin, mostly if you are seriously lacking behind in your accumulation or you haven't even started at all