Good start for South Africa but I don't think that Bitcoin ATMs don't give the best value for their money. As these ATMs will give you exchange rates that are different to what the world market is offering, and the rates are always in favor of the ATM business owner. I see rate differences to go up to 6-7% in certain atm machines which are obviously high, this rates also account for the fee of using the machine. But nevertheless having a physical option to be seen in South Africa is a good way to boost their presence in the country.
This is somehow already anticipated where rates would really be more than on some percentage compared to overall market price. We have seen some of it in the past.If the demand is high and theres no other way to accumulate it then owners of such bitcoins will sell out depending on their own rates.On Africa we do know their current economic state which BTC isnt really too rampant or do have high awareness of existence. If this bitcoin atm do already exist on that place then it would add up.