I think in your case, because you were basically a full time SAHM you were able to get that deal. Also, (in addition to the reasons stated in my answer to Beth) at the time of our negotiations I had just landed a big time corporate job, and my salary was equal to Xs. So there you go!
SG
Survival Goddess "The most common way people give up their power is by thinking they don't have any." -Alice Walker
