J.C.
If you remove the pool you will not only have to pay for them to bring in the heavy equipment to break up the pool, and pay to have all that debree removed and disposed of, you will than have to pay for soil and to have it brought in. A friend just bought soil, one load in his own pickup cost him $200, and that only put a thin layer over 1/4 of his small lawn. The fill for a large pool is going to run you a lot. If you do not want a pool, I would not buy a house with one unless you have thousands to remove and fill it.