I always figured it was partly to avoid the clocks and keep you in the fantasy.
After the casinos were saturated, the enforcement changed.
But fun fact, the code (at least in my state) gets audited and one of the things they were doing even 15ish years ago was pulling EEPROMs out and running through a machine to make sure the final hash is an approved, audited progam validated to have fair payout logic.
The above could include cases where someone intentionally slipped an exploit into code and it escaped audit. I'm not aware of this happening (and one of the points of audits is to prevent it), but I'm well aware of ways I can create an exploit that I wouldn't catch if I was an auditor.
[1] https://www.wired.com/2017/02/russians-engineer-brilliant-sl...
In the modern (American) music industry people have realized that
* your average concertgoer phone shot video is too crappy to make much of an impact on that
* the whales who spend money on merch/etc at concerts will happily pay for a production quality movie of a concert regardless of the existence of these crap videos (e.g. recent Taylor Swift and Beyonce concert movies)
* at best these videos also drive the desirability of going to concerts up, boosting the main way artists make money
In countries like South Korea and Japan they still very much focus on protecting the likeness and so cameras are banned
This is not true. Big concerts in both countries are essentially 10k+ people standing on their feet for 2-4 hours holding mobile phones in front of their faces to take photos and videos.
They're not completely banned in Japan; it depends on the concert. At one concert I attended recently, cameras were not allowed during the concert, except during one song: they made an announcement that camera use was permitted during this time (while the musicians were walking around the arena during the song), so people pulled out their phones to take close-up photos of the musicians if they could. Afterwards, they announced that phones/cameras should be put away, and they were.
It's actually pretty nice: you can see much better without everyone holding their phone up, and then everyone still got a little time to use them for their photo collection.