It is the ability to read the cards that was the game changer. Once that happened, the possibilities become endless. And there really was no need for that. Prior to that, the machines could still detect if a card was missing, it just couldn't tell you what that card was. That is all they needed. That is a lot of extra technology that could be used for nefarious purposes, just to tell what card is missing.

When card readers were introduced is when Gaming should have stepped in. But like I said, they were in way over their head with all this different technology and have been very slow to catch up. Maybe by design.