Think about it..
The casino will be like a department store, walk to close to an exit with a roulette chip and an alarm goes off.
It doesn't make sense. The cost of the sensors, the detectors at exits and the chance of strip searching a high roller because he accidently had a chip in his pocket just doesn't add up.

Greg,

I think if we line your pants pockets with lead, the Xray equipment won't pick up the chips

Neal