i called some ISP's and FTTH is not cheap. One of them replied to me saying it's about R20,000 installation cost for Fibre to my home (that's only an estimate, it can be R25,000). Thats what they told me. Then R5000 per month.
ISP that also sells ADSL who do FTTH (on the above)
Yea, this is why telkom is doing whole neighbourhoods at once. Splits fixed costs among all the households that want it.