Not necessarily.

If the fare really at RM 120, we have to look at other examples...

Bus option is RM 50, but takes 8 hours.

Airline, fare itself can be more than RM 120 one way, if book last minute, but then KLIA 2 is very far from the city.

So, electric train, which takes 4 hours from Gombak to KB at RM 120 is pretty competitive.

driving kl-kb it would take roughtly 8-9 hours on casual driving. do not believe what google map say. 8 hour drive, u need to stop to pee, eat and so on.
those who make it in 6 hours either bluffing or driving macam babi.

Even if highway is built and reaches Kelantan, it cannot cope with festive season traffic, and air travel can be very expensive during festive season.

An eight-car train as proposed for ECRL can carry 600 passengers, equal to four A320 jets.

It's not just Kelantan will benefit, but all other towns along the route too.

Bentong will be economically closer to Klang Valley too.