My wife and I have spent much of the last two months preparing our house for sale and looking for a house to buy. Our goal is to be closer to our boys’ school and UCSD, where my wife works. During the process, I was reminded of an important business lesson: It’s much better to sell something in high demand, than to buy something in high demand. According to one realtor I spoke with, San Diego has the lowest real estate inventory of any city in America. I am not sure if tha