I think there is nothing amazing...... Uski need ya shoq tha, he bought prado and offcourse if he has prado, usk ghar me money ka tree ya kuaan to nahi hay k wahan se pese nikalay ga aur petrol bharay ga....... He bought prado to get all the luxuries it has and if he put CNG in it, still he'll b enjoying same luxuries atleast better than v having crappy corolla civic suzuki like pakistani made shit.
I would rather take it as, those who don't have CNG, can't afford to buy a CNG kit........ and this is my personal experience not to be shy on..... I had company provided Honda City...... Fuel was my responsibility, i couldn't afford CNG kit worth of 40K so i kept using it on petrol for entire 2 years.... n yes, in first 10 month i drove it 80K kms