I've seen this description "boutique" cable used frequently on this and other forums. What exactly does this mean? Does it have a definition? 
"boutique" can describe a manufacturer who limits production in order to justify insane pricing...most of these guys work out of their basement or garage until they have fleeced enough people to move into a local industrial complex.
"boutique" can also be a manufacturer who employs ridiculous over-engineering in place of standard established production materials/methods...then charges insane pricing to compensate for the over-engineering.
Look for key phrases and words such as "cryogenic treatment", "six nines copper", "unobtainium", etc... then hold your wallet tight and run for the hills

I believe the two most important aspects of good speaker cable are proper gauge for the run and solid terminations. Certain combinations of braid geometry and shielding can lead to abnormal capacitive or inductive effects that have the potential to alter amp-speaker synergy so I'm not claiming that ALL cable babble is false....just 99.9999%
