The value of Bitcoin is still changing quite quickly and likely will for some time. The upside of this is that it makes trading against this value very exciting. For South African traders, this means that they can make a profit with Bitcoin without even buying any of it.
By using their own currency, Rands, they can trade on the value of various crypto, including Bitcoin. They also could use any crypto they might have already, to setup bank accounts and investment platforms. Bitcoin can help avoid unnecessary card purchases and even get good prices on certain deals.
There are also the other options of trading on currency pairs with the different crypto and regular currencies. In this regard, traders can invest on the comparison of the different options, relative to each other's growth.
Predicting the cost or value of Bitcoin is part of the trading process. In order to estimate this value it requires traders to do a good amount of research about who buys and sells Bitcoin. Not only do they have to look at the different factors that affect the value but also adjust for the timing involved. Being a cryptocurrency means that it is entirely digital, this carries with it a certain different time frame in terms of reacting to events.
It can also be difficult at times to tell the cost of a Bitcoin in actual value, as opposed to the cost in other currencies. This is again because of the way crypto is set up and how it uses different markers to normal currencies. These markers, like node count, can allow traders to get a better understanding of the projected heading of the cryptocurrency.