You must be careful with this logic, as the townspeople may soon emerge with their torches and pitchforks! Kidding aside, I have wondered this myself. One thing that get's me too is how the new expensive cables almost always make the sound not just different, but "better." *Shrug* I personally like aftermarket cables for their aesthetic value, anything other than that is a bonus.
Right, I am asking for explanation not giving an opinion. It is like a high-way is the exit is small, it make no differences if the road is wide. What is the magic? I also look at my headphone like Grado and HD650 cable I am sure these are very high grade cable. I then look at the 6.3mm to 3.5mm adapter, inside they look cheap probably cheap steel/cable then there are the headphone connected inside the Amp/DAP I am sure they are lightly bad of cheaper material so why do cable matters? Again, I am a believer of cable but I don't understand this part.