BETHESDA, MD — Who among us doesn't imagine walking through the doors of our own castle of a house, with a spectacular entryway, a gigantic kitchen, private pool, wine cellar and the most unbelievable views you can imagine? Oh, did we forget to mention the full-size indoor basketball court and the ceilings designed by a Buckingham Palace artisan? For most of us, a home will be the biggest purchase we ever make in our lives, and for good reason.

