I agree with you, DCA is actually more beneficial for those who have limited income and can afford to invest small amounts of money, but the sad thing is that those who have such a small income, they are actually in the wrong mindset that they think that Bitcoin investment requires a lot of money, There is no profit in investing small amounts here, which is definitely a wrong mindset. and because of this they delay in investing in Bitcoin, which is definitely a wrong decision for them.
And yes, it is definitely true that you have to be consistent, no matter how much money you decide to invest, it is not a big deal, the most important thing is that you have to be consistent, and you have to continue this process for the long term. Only then will there be a chance of success from it, and for this, discretionary income is definitely the best option. People can create a discretionary income source with a little effort, all they need is real willpower.
I am sure everyone must be familiar with news that a Satoshi era investor has recently sold his 80k Bitcoin for 9 billion US dollars and the purchase price of these Bitcoin will be around 10$ per bitcoin or may be low. If anyone has invested few bucks in Satoshi era and still hodling it then imagine how much profit he is getting today.
I quoted this news just to give an idea that amount doesn't matter, what matters in Bitcoin is the time you are willing to hold. Keeping this thing in mind we must follow DCA for long term and that's why I say it doesn't matter how much you invest per week, important is you invest with consistency and for long term.
Just like you said, what matters is not really how much bitcoin you buy even though it also matters. But what really matters is how long you can be able to hold. It takes a lot of patience to what the bitcoin fluctuate without been tempted to sell. However being convinced about what your intentions are is what keeps investors going. It is not everyone who acquired bitcoin during the Satoshi era that were patient enough to hold until now. This should be a living witness to why every investor should aim at long-term holding. The rise of bitcoin within the past 15 years may not actually be equivalent in the next 15 years but there will always be a reward for holding for a long time.
Timing bitcoin market are mostly done by traders, they spend more time studying when to buy and sell looking for quick profit by selling their bitcoin in loss. Investors who watch bitcoin market waiting for the dip sounds like a waste of time because they’re missing out by holding fiat whereby value depreciate, it’s better they buy the dip now else they might never see the previous dip although even if previous dip price range will come they’ve already wasted their time.
I think it is really hard to time the Bitcoin market. I know people from previous cycles, who want to invest in bitcoin and looking for the perfect entry point but they kept waiting. Similarly, people try to find the exact top for exiting the markets, but they always end up holding for too long, because it's hard for retail to time the market. The best thing retail investors should do is to DCA at all levels, whether they are buying or selling bitcoin.
To me, it is only the institutions that can time the market, as they are the ones who know when to pump and dump the market. In fact, they have the money to move the market according to their will.
The Idea of looking for a perfect timing to invest in bitcoin is also deceitful and causes only a possible buying at higher cost. The perfect time is not in waiting, it is in NOW. If you think that bitcoin is costly to and wish to wait till tomorrow, how sure are you about the certainty of a lower price by tomorrow? It's better to start gradually by DCA than to wait or either target a lump-sum investment.