"Taking chips or tokens that you have paid or is not stealing"
You are not paying for NCV chips, you are using them.

Over 30 years of running poker tournaments in LV, I have went to the tapes several times, gone to the person that took them, got them back, then had him barred from the casino.

I am sure you remember the Orleans fiasco when a big name poker player was barred for taking NCV's. He wound up being barred from several events in other casinos for the Orleans incident.