If you haven't figured it out yet, manufactured homes are not your granddad's mobile homes. Some of the designs are even elaborate. Modular homes, for example, have more than one story. They have porches, garages and decks, and vaulted ceilings. And depending on the lots, homeowners can add beautiful lawns and landscaping. Builders can also customize houses to customer's specific needs -- want stainless steel appliances, hardwood floors and granite countertops? No problem. Some companies even specialize in upscale modular homes. One firm, the Modular Center, has a "Masterpiece Collection," which features homes that range from 2,000 square feet (185.8 square meters) to more than 5,000 square feet (464.5 square meters) [source: Modular Center].