Transparent Cables - Worth the money?

I have just completed a transformation of my system to use Reference XL throughout. While I, too, feel that the cost of any of almost any cable out there is suspect, there is simply no denying what you hear. In my experience (and I've tried nearly everything - Harmonic Tech, XLO, NBS, etc.) the Ref XL simply makes musical instruments (and human beings)sound more like the real thing, in real space, than any of the others and by a wide enough margin to justify the cost. When you have invested significant $$ in all the other components of the system, it was, for me, illogical to use a lesser-performing cable that significantly compromised the overall sound of the system. In my experience, value, like beauty, is in the eye of the beholder. Because of what these cables do, their cost, for me , was more than justified.