The basic point is it takes around 300-400 kms more than the normal routes. Thing is, a complete WAP7 journey might be very exciting from rail-fanning point of view but why would people avail this train if they have to pay more!! A person pays 740, 970, and 1555 for 3A, 2A and 1A respectively for this journey by SBC Rajdhani. Considering your route, they have to pay 1063+charges, 1503+charges and 2524+charges for the same respective classes. It's not practical in any way.