From what I've read, there is indeed a downward trend in gambling participation in Australia. However, that doesn't mean these participants have stopped gambling, rather, they are shifting platforms, with the majority now gambling online. This is likely because online gambling is more convenient, as people can play from their mobile phones without leaving the house. So, it's not the increasing accessibility of slot machines in various locations that's diminishing the excitement, but rather the current trend where most people prefer to gamble on online platforms.