Why high-end cable manufacturers don't post measurements?

I agree that cables now play a large role in the final sound. But..does this justify the prices of some cables, Do you get value for your money? I'm not so sure. Don't know if exposing the measurements will help our decisions.

^^^^You don’t have to spend mega bucks to obtain high quality cables. There are plenty of cable brands that offers great value for your money.  Look into Audio Envy...they were the end game cables for me. 

Do they still put batteries in cable? I know that was very popular at one time.

They probably do but it would be so complicated  and confusing  .That you need to be an Techinal Engineer to understand it.

Purist does post some measurements - resistance and capacitance, although not inductance.  I think they also make some excellent cables.