Once one actually makes the effort to learn the simplest soldering task of all (a simple wire splice) and cuts an fits a custom length extension with no uneeded wire length and possibly buried plugs he will never go back to stacked extensions which are more expensive, often turn into spagetti nests and offer higher electrical resistance in many maybe most cases.

There is not much more disheartening than the need in some cases to have to do surgery just to track down a high resistance plug.

Beyond that soldering opens up a whole new world of options in many other areas of modeling that for instance will offer freedom from unreliable and ugly wheel collors.

Unfortunately it seems to be a skill that seems to be dying along with actually building an airplane rather than assembling it.

John