@JC1979, You seem to be under the mistaken impression that the lot-design is actually any significant portion of the cost of developing an expansion. Given that any Simmer can do lot-building, and whomever EA has doing it isn't even all that talented....I doubt it has much of an impact on development costs (ergo, little to do with cost to us). World design may be a different story, but number of lots has little impact on that...they really only save money on the person (or team) that builds the lots by giving us fewer of those.