Fair enough, but if you are fairly new to bitcoin (as your forum registration date is not even two months), then it can take years and years and years to build your bitcoin position and/or to get your bitcoin stake to a high enough status that you might be able to become less focused on BTC accumulation.
You could end up screwing yourself if you are waiting around too much rather than just buying and letting the chips fall where they will, even if you end up having a higher cost per BTC, but if you plan on staying in BTC for 4-10 years or more than it may end up doing you better to get your mindset correct in terms of buying BTC ongoingly and persistently until you reach a certain stash level..
Buying on dips can surely supplement a DCA strategy, and buying on dips becomes even better of a strategy the loinger that you have been in bitcoin, such if you have been in bitcoin for a whole cycle or a cycle and a half.. Then maybe at some point you might convert to ONLY buying on dips, but in the beginning many folks do not have enough bitcoin, and surely I cannot tell you how much you need.. and sometimes if you are new to bitcoin, you don't realize how many that you need.
Also, if you are just planning on selling after the price doubles or triples, then sure you may well be thinking about your approach to BTC differently as compared with a lot of the members participating in this thread.
I understand what you want to say about how long it could take to get a lot of Bitcoin and how much important to start buying it EARLIER not later.It is true buying and keep Bitcoin over time can be a good strategy especially if you plan to keep it for many years.
Buy the Bitcoin when go down can also be a GOOD STRATEGY. But when you are just starting and don't have a lot of Bitcoin it is better to focus on buying it REGULARLY instead of waiting for the price to go down.
When we should sell Bitcoin depend on what we want to ACHIEVE and how much risk we can take easily. Some people want to sell it when the price go up like doubles or triples. But Mostly "Hold" tight because they think Bitcoin is the name HODL(or think the word HODL unique for Bitcoin). That is important for everyone to think about their own strategy when it comes to Bitcoin.