You have a good point, @MCUKing, while trying to accumulate more coins, like up to 1 BTC or more, if considering the prices, the person will not end well, because I feel that as long as the person is considering the price of BTC, the price is high. The person will end up not buying because the price of BTC is high and the person will wait for it to dip before he continues, and sometimes btc continues to increase, so at that season the person has missed the opportunity. Waiting for the btc to dip before buying is not a good strategy that can be used to accumulate btc. As long as an investor is using the DCA methods to accumulate, he will not be thinking about whether Bitcoin is high or not.

I have never suggested to ignore those three categories, even though DCA does tend to be better for most people and most people do not have lump sums.  I also don't necessarily consider that new cashflow coming in has to be DCA'd. so for example if a person has $100 per week available, he could choose to divide it into two.. half for DCA and the other for buying on dips.   

And again complete personal discretion and it is good to know the three categories and to figure out how much to emphasize on each one, with perhaps the default being DCA until getting up to a certain level of BTC.. and so as your BTC portfolio gets bigger, your options increase too, which tends to remove DCA from the default position.. especially if you start to become more informed about various aspects of your finances, your psychology and BTC.