Point to point wiring.

As Rushton says, circuit boards allow cheap components that look tidy.

While not disagreeing with Rushton's comments, you should not conclude that point to point is inherently superior to circuit board based designs. Each accomplishes the same goal and you would have to look at the overall circuit design to infer which method is "better" for that specific application. This is particularly true when you factor in issues such as circuit complexity, reliability, ease of repair and ability to upgrade.

The other advantage is that each device that consumes power has a direct path back to the power supply and therefore the differences that can occur when all the devices are trying to draw power from a common distributed supply are eliminated - theoretically making each perform more identically. It is an indication of extreme attention to detail.

'point to point wiring' is code for 'it was made in the room over the garage by dyi enthusiasts'.

Another downfall is a circuit board can be very susceptible to airborne and mechanical vibrations. Some manufacturers implement "floating" the boards with small springs or rubber devices on the mounts to the chassis to reduce these effects.