Icon, I know islam allows a man to marry for the purpose of children alone. I respect who welcome their husband's decision to marry for the sake of having kids but after living in the Middle East and North America and seeing "Parents" in the West and the East, the thing that has always amazed me that for some having kids is not to give them tarbiyyat to become good muslims rather its just to have kids.
And for couples who do not have kids, honestly I believe there is more to this relationship than just having kids, yes I know kids bring them closer but they only do that in an already good relationship.
Also for all of us muslims, Allah has explicitly mentioned in the Holy Quran that He tests some by giving sons and daughters, some by giving them sons, some by giving them daughters and some by not giving them children at all. Deprivation (as you call it ) of parenthood doesn't come from the woman or from the man, it is the Will of Allah ....