Plumber->Electriction->Digitician
As early as the 1990s, a few pioneers made house calls. But the business has surged as word travels among neighbors, friends, co-workers, and professional networks. A conservative estimate of at-home service puts it at a $7 billion market -- and growing. Prices for home visits range from $30 to $125 an hour. The Judge family paid nearly $300 to fix an $800 computer.