If you're lucky it'll have some amazing cable lacework[1] holding the various bundles together. Sometimes I've thought that the insides are actually better looking than the case. It's a shame that it's dying out in favour of cable-ties and velcro, although the effort involved in both learning the skill and creating/reworking bundles means it's seldom the most economical approach.
I think it still lives on in some Ham radio groups teaching materials and standards though, as well as niche environments or reliability critical applications like (aero-)space
It's very difficult to assemble a circuit without a substract (PCB or other), and those wires aren't going to stay straight by themselves.
The shining capacitors are a special touch (I guess he removed the plastic cover on them)
I'm not sure about the sound quality though.