Ahmed bhai, further to what Sarkaar bhai has beautifully summed up, here is my humble opinion. First of all, it is unfair to compare Wagon R with any JDM car. Those with this frame of mind, should also compare Japanese corolla with Pakistani Corolla, or Pakistani Civic with Japanese Civic, or Pakistani City with Japanese City, or a 3.5m+ Pakistani Vigo...and so on and so forth. The fact that a 1.5m corolla still has manual windows (the 2014 one has no immobilizer or climate control), or 2m+ civic and corolla/Vigo etc have far less features than their international models, should be a clear answer to all such people.
It is only justified to compare Wagon R with PKDM cars in this price range and engine size. And like Sarkaar bhai rightfully said, no other car gives the same value for money, not even a corolla XLi (which i currently drive).
The only available options are a Mehran, Cultus, Swift and Santro. I have driven all of them and "personally speaking", none of them comes anywhere near the Wagon R in terms of driving position, comfort, soundless engine, brake and space. I mean, you sit in a swift, and then you sit in a Wagon R. You would immediately notice the space and the much more beautiful interior. The roof height is so comforting that it soothes you. I would only compare Wagon R with Swift, not with Cultus or Santro.
When I was buying a Wagon R, a friend offered a Japanese Wagon R with parking sensors and infrared radar (i cant recall properly, but i think it had climate control as well). The only problem was that the car had an accidented bonnet. Though he assured me, aisi repair ho gi, ke pata bhi nahi chalay ga, yet I could not commit 1m+ of my hard earned money to a chance. So I bought peace of mind by buying a zero metre car alhamdolillah, instead of going for better specs.
Yesterday morning, it was raining heavily in Lahore and being Eid day and rain, the roads were empty. Although i am a calm driver usually, but the car was giving me so much pleasure that i drove above 100, wherever I got a chance. And my confidence in this car is further strengthened. I could never have driven a used car, with unknown history, like this.
So, my humble advice would be, to focus on the positives. There are many bad points in this car, but the good outweigh the bad by far. Happy motoring :).