K3cT, are you going to but THAT particular NAD? (I think I used to own the pair your reffering to). Anyway unless its that specific pair, I think youlll have a near impossible time finding another Mylar NAD again. Most of the pairs you will find will be the standard Kapton ones (super bassy).
Even if it IS the mylar one, the LCD2 IS superior. But how much it is worth it to you? That is only answerable if you hear a LCD2 and make that judgement.