Most of those specs are nice in theory, but not that special to a general user.
- Gold plating is usually only beneficial for analog signals since oxidation can degrade signal quality. Signal quality is of disposable concern in digital cables; It either works or it doesn't. Also gold plating is softer and can wear more quickly if plugged in/out often.
- Ferrite cores are nice for environments with heavy interference, yet that would have to be some environment you're working in to need this.
In professional, critical applications I could see some use for these, but not for home users.
Heavy cables, now that's something I could see as useful. Daily use, bending, stretching; they take their toll on a cable.
Embedded Systems Engineering student