DTT means everyone will need a set-top box to watch ScrapABC, meaning that if you don't pay your TV-license, you won't have telly.
So, the government needs to convince the masses that paying R400-R700 for a set-top box to watch Mzanzi-fo-sho, plus an monthly TV-license fee is GREAT!!. Of the masses, only about 20% (tops) currently pay for a TV license.
It's obvious that the delay is caused by the fact the Government and the SABC knows this and should they go ahead and roll-out DTT, the SABC will go bankrupt, because not only won't they masses want to suddenly pay for TV, people like me with DStv will finally kick them under their asses immediately because my DStv subscription already includes my TV-License fee.