"...Consider the space known as the guest bedroom. First calculate the cost of constructing an additional 300 square feet. How many times per year is the guest bedroom used? In terms of cost-to-benefit ratio, it might be logical to invest that same amount of money in the bank, use the interst to house the occasional visitor in the local bed-and-breakfast, and retain the capital for other uses."
What a good way to consider any extra space in the home. Helps one realize the true cost of all that spare square footage in many homes.
How many homes have guest bedrooms that go unused but for a few times a year? Just another case for the small home. I highly recommend the book quoted here: The Rammed Earth House by David Easton (pictured at right). Make sure to check out the entry called Small is Beautiful (and Costs Less).
Image: Country Living