hey. The thing is its easy for the sims to build another house or buy a new condo (even the $ residents), so dont feel guilty. dont worry about destroying some bldgs, because once you find a way for the mass transit to work, it REALLY HELPS on DEMAND and the higher the demand the more bldgs will grow. oh, and dont be scared to take a loan, i myself loans 200k before even zoning. hope it helps