The Halloween in Japan

Halloween event has become popular in the mall and shopping center of Japan. 
Ten years ago, Halloween was not so much popular.
I think a factor that became the current situation is three. 
One is the effort of Japan's commercial capital. They thought the Halloween as an opportunity for sales. 
The second is the impact of globalization.
And, the third is that Halloween looks fun. 
The third factor is the most important. I think so. 
Halloween in Japan is becoming in the event for children to look forward to.
How do you think about ?