Re: PM Gilani inaugurates Pakistan’s first business train…a private enterprise!
They do have a economy ticket (same services without food) for 3500 
Service will still be really feasible for families travelling. For average family of 5 people, air fare (night coach which is cheapest) is around 90,000. while on this train it will be around 45,000. People will like to save that 45,000.00 when doing a family travel where time is not primary factor.
Return trip cost is almost half of air travel (and even more if you buy economy i.e without food)