We're continually amazed by the brave gazillionaires who list their multimillion-dollar homes in this environment -- economic crisis or not -- knowing that their properties won't fetch top dollar. And we're equally fascinated by how few of those houses have sold. Among the multimillion-dollar San Francisco houses listed over the last week, three are priced above $5 million; six are priced between $2.7 million and $4.7 million; and a couple are prices slightly upwards of $2 million. The priciest of the bunch is 1188 Lombard Street -- a three-bedroom, Mediterranean-style Russian Hill home owned by Byron Meyer, who, as far...