Waiting and piling up the cash in fiat before you buy is totally the wrong approach if you ask me because Bitcoin isn't a stable coins and you can't expect the price to sit around and wait for you to gather all the money first before you now use when you are satisfied with the money for investment. The right thing to do is simply to keep striving to accumulate just like you have stated with the little earning so that you can meet up with atleast the lower price because you can't tell when the price might go up or even down.
That's right, collect cash first before buying Bitcoin, of course this is very wrong, we can skip buying when the price is down and it would be better if we continue to make purchases whenever we have funds that we can use to invest in Bitcoin and do it consistently in order to achieve satisfactory investment targets from the results of the investments we make.
Make a plan of how you will invest, if investing with accumulated money you must wait for the dip. But if you keep investing regularly using DCA method then you can invest monthly or weekly with your income or salary. So it only depends on the investor whether his investment is long term or short term, but Bitcoin investment is better to be long term. Because the longer the Bitcoin investment, the higher the benefits and the lower the risk.
but if you decide to invest in Bitcoin only when you have funds, you wouldn't be consistent in your accumulating process and that might hampers you in having a good stash of Bitcoin in your possession,
When you said investing when you have funds, will make someone not being consistent with his accumulation, it got me a bit worried, because it is when you have money that you can be able to invest in bitcoin. I don't see how investing in bitcoin when you have money will hamper someone from having good stash of bitcoin, because it money that one need to invest in bitcoin. Even if we have source of income, it is when the money is readily available that we can invest in bitcoin, because bitcoin is not sold for free in the market. Consistency comes from doing something regularly when you are able to do it provided you don't quit halfway. Let's not just think in one direction or just think on what we are used to and see it as the standard way of doing things. Let's not see people who are not doing DCA every week or month as people who are not doing the right thing. There are people who do their DCA bi weekly, monthly or two months interval, it all depends when you have money with you that you want to invest. If if you think that they are slow it doesn't matter, what matters the most is the consistency here, but the most important thing is when your money is available, when you have money, because you can't get bitcoin from exchanges without money. There is no rush in bitcoin accumulation here, it is better to do it slowly than do nothing at all.