My bank charges are -R600 to -R700 on average, i.e. I'm being paid. And no, I don't have to spend stupid amounts of money. I spend what I normally would, with some minor behavioural changes like using digital channels instead of going to a branch, drawing cash at till where possible, swiping credit card and settling at the end of the month etc.
Believe it or not, banks have other ways of making money other than your bank charges. In some cases, they would also save money by way of reserve bank fees etc. And risk is also a big factor.
So this magical hidden 'subsidy' that everyone speaks of, but can never detail, is in most cases a myth. Yes a portion may be subsidised by others, but there is nothing stopping them from changing their banking behaviour. Have you guys ever asked yourselves why they prefer you to use electronic channels instead of going to a branch? Or why they prefer you to draw from a till instead of an ATM? Or why they want you to change your other behaviours? No, everyone automatically assumes some magical subsidy coming from somewhere else.
But I'm drifting off topic now. All hail Capitec, the saviour of the SA banking industry...