Very expensive

Very much expensive on-road price for Nexon ev xz plus variant in surat is 17 to 18 lakhs which is just nearly double against fossil cars. And expecting to run for 1 RS/KM vs 2.5 rs / km in cng (ertiga) the difference in amount will be equal when you drive daily near 200 km for 8 years. So why would anyone buy this nexon ev which we can't take on long drive and which is so much expensive instead will go for ertiga vxi cng.