Re: Two options...
Its cheaper to have the wedding where you live rather than flying out to Pakistan. The cost of tickets for all your immediate family members will certainly add up. And when in Pakistan theres even more temptation and pressure (from annoying, interferring and competitive relatives) to buy more gifts, like 50 heavy embroidered suits for the girl and all those silly gold sets which cost an arm and a leg which she never ends up wearing. The cost can end up being horrendus.
At least in the west you don't have that cultural influence or pressure and can concentrate on what the two of YOU want and not others.