Question: You are trying to choose a new siding for your house. A salesman offers you two choices:
a. Wooden siding, which will last 10 years and cost $5000 to install and $1000/year to maintain
b. Aluminium siding, which will last forever, cost $15,000 to install, and will have a lower maintentance cost per year If your discount rate is 10%, how low would your maintenance costs have to be for you to choose the aluminium siding?