Not true. In absolute term its actually cheaper and easier for Pakistan to maintain the existing positions. Pakistani troops are actually quite well prepared to carry on with the conflict for the unforseeable future. The issue is the need for the Pakistani government to show that some progress is being made in terms of peace with India. If Siachen is not resolved and Sir creek remains beyond a resolution then attitudes will harden again and the shooting across LOC will begin again. Pakistani troops have withered the worse of Siachen and PA would not leave the glacier unconditionally. In terms of military expansion in the glacier, it has actually been dotted all over by mirroring positions setup by both sides. Anything short of a major action would not change anything....so essentially its simply a point of when there will be a deal....sooner or later both sides will agree that no side can have it all. Indians are not in a position to dislodge Pakistani troops from their positions and the same goes for Pakistan....so you either sit there (Pakistanis have been there for the past 23 years and can sit on it for another 23 years as the economy is only getting better).
Yeah, in absolute terms, it costs India more, but relative to the economy, it costs Pakistan wayy more.It hurts Pakistan way more. Now, both sides know it cant have it all, but the point is that the IA does not want to have it all. They did not have it in the first place, now they control the larger part and have the most strategoc location which they dont want to leave. Ofcourse getting the opertunity to have it all, they wont miss. But they are already gaining so much by being there.
Its the same thing 'jiski lathi uski bhains', lol. India only wins by remaining at siachen. It has a bigger area, the commanding heights, the precise strategic location to target the Pak-China trade route. Pakistan wants to remove India from there, which the PA knows it cannot do. Now, India wants Pakistan to demarcate the troop positions which are basically a tantamount to accepting the Indian position there, and validating it. The IA has also been there for an equally long time, and our economy too, though already so good is imporving at an exorbitant rate, second fastest in Asia!, so the IA is also not in a hurry to leave. Infact the statement from the Army that was posted in these forums that the IA is against any deal with Pakistan on Siachen , had one motive, to tell the govt that the IA can handle Siachen very well. They are not in a hurry to leave.
So, the crux is that India wants to keep its strategic edge in Siachen, whereas Pakistan wants it out. Thus, like mentioned in some other posts, India negotiates from a position of power. Lets see how the negotiations turn out.