Real estate is evolving and constantly changing. Sometimes the properties increase in value and it is time to sell. At other times, they loose some value and you end up with goods that are worthless.
In games of property management, you have to speculate, think and make decisions quickly to resell or keep some of your goods.
In other games of property management, you have to build faster than your opponent and spread your money to be richer than him ... before him! Make the right decisions.