Slawney, Slawney, my little grasshopper, you have strayed from the fold, failing to perceive "vision" in default to you reptilian brain stem that wants excitement. Hi Slawney, how you doin'? Seriously though, and without commenting on the price differentials (which are not relative, as some would argue), nor to the sound of the Sakura (which I haven't heard)... What I think is being missed here in a NBS Statement (your series 1, right Slawney?)and Sakura comparison (assumably IC's)is the synergy issue between IC's and spkr cable. NBS IC's are superior IMHO to their spkr cable - and many other speaker cables match well to their IC's sans their spkr cables. I look at NBS as an interjector of a certain nuance in harmonic complexity (deep into the harmonic fabric) and spatial realism (at the shallower levels of listening, in how sound waves move in space; symmetrical and continuous and with proper projection qualities) and at the deepest levels existentially (the deep intuitive grasp that the "event" of musical connection between mind and music is not cut by a soundfield that lacks a intuition of dimension). In the most advanced systems, these are the qualities that one is still after and a component that accomplishes it should not be relegated based on an immediate reaction to "speed', "detail", and the thrill of dynamic swing and contrast that are predomonantly appreciated at less deep levels of listening (which doesn't mean that they aren't important, just that they can get in the way if over-emphasized in relative value). What I have recommended to many people is a subtle mix: NBS Statement IC, usually between a tube pre and tube amp and a "faster" spkr cable that is capable of also translating the essense of the NBS IC attributes. Interestingly, in this application I have also ended at a thin conductor for speaker cables: AudioNote Kondo KSL. If I had all-Sakura electronics, then, of course, all Sakura cabling makes sense. But I dont know many audiophiles, including Slawney, who are at that place, or would stay there.
Slawney, from deep below, the "vision" is calling you through the sensitizing veil of the Matrix (its Halloween, you know)...