Honestly I wish I had put "(or maybe a new fangled DVD)" instead of "or DVD" because people seem to interpret that as "DVD wasn't good enough to have any impact on movie sales" rather than "either VHS or DVD at the time were still shit compared to the options now so does a decrease in ticket sales really guarantee a decrease in movies watched?"
DVD adoption (and later Blu-Ray) was certainly a huge factor in the gradual changes and 2002 was when people really started amassing them at home https://i.imgur.com/OHZ9H69.png. I'm sure piracy has a role as well too, but most of the deltas listed were also gradual changes which had their start prior to 2002, same as piracy. The only thing special about 2003 is it's the year the momentum changed, not that it's the year something brand new was introduced.
DVD adoption (and later Blu-Ray) was certainly a huge factor in the gradual changes and 2002 was when people really started amassing them at home https://i.imgur.com/OHZ9H69.png. I'm sure piracy has a role as well too, but most of the deltas listed were also gradual changes which had their start prior to 2002, same as piracy. The only thing special about 2003 is it's the year the momentum changed, not that it's the year something brand new was introduced.