You wanna know something? Not everybody is concern about how much they spend their money. Some of them more concern about the quality of service that they get.
People only knows that so many ported out of Maxis back in April. But what most of the people does not know is that there were a lot of cases whereby those who chose to ported out from Maxis then ported back in to Maxis because of shitty service of other telcos. Only those cheapskates complain a lot.

You might see a lot of complains in Maxis facebook/twitter but at the same time other telcos don't even dare to open up their social media platforms for complains, so you'll see as if there is not much talk on bad service of other telcos.