Everyone needs something to get all het up about, whether it's cables, politics, the football, house prices, music or how everything went wrong after [insert year/decade]. For me, it's the use of the phrase 'train station' instead of 'railway station', though I'll probably find myself unthinkingly using the former phrase before long.
But, cables, really? Buy what you like, fit and forget. Don't worry about whether some bloke on the internet thinks you spent too much, or too little, or that you should use exactly the same cables that he does.
As Trollope put it: 'There is nothing perhaps so generally consoling to a man as a well-established grievance; a feeling of having been injured, on which his mind can brood from hour to hour, allowing him to plead his own cause in his own court, within his own heart, and always to plead it successfully.'