Remember there are plenty of companies who need the odd PCB, but aren't in the PCB business. Simple power/control boards (weird voltage, multiple outputs) that

Remember there are plenty of companies who need the odd PCB, but aren't in the PCB business. Simple power/control boards (weird voltage, multiple outputs) that aren't available off the shelf from RS or Farnell. None of those boards need to be more than two layers. I've designed lens focus control boards that only required a single layer. Yes of course if you're doing RF or fast serial you'd be daft to do it on a milled board, but they are convenient sometimes.