Sure it is good to have a longer time line, and that was part of the reason that I outlined the examples to show that the longer that we invest, even if we might start out at a market top, we still might well end up still putting ourselves into a good position.. even though surely it is not guaranteed, but we can see how our BTC portfolio is growing over a timeframe in which we might continue to buy for 4 years or more and then perhaps reassess if we might need to make any changes to what we are doing or just keep buying regularly.
I think someone will not be satisfied with their BTC holdings because if we already love BTC then we will continue to buy every week. An increase in the portfolio of the number of BTC which continues to increase with accumulation every week will make us more enthusiastic to continue doing it every week.
Of course, as you have experienced as someone who has been buying BTC for a long time and keeping it until now, you definitely have high enthusiasm to continue to increase the amount of BTC you have.
At the end of the year we may not be satisfied with our holdings as the DCA strategy implies consistent short buying. In this case, you can buy a bit more than the series when you realize that its price has entered a bear cycle if you have a floating cash supply. Recommend you to do more research on these marketing strategies. Again after some time when the market rises in the bull cycle, continue with regular DCA and you can get the benefit of over-accumulation in earlier DIP and the average price will fall.