Upload & Sell: On
I've heard that, but these bugs are not aggressive so I dont know how that can happen. You can store a hundred crickets in one cage and they wont fight.
Clearly the sound was the most important thing in this market because you could see the men evaluating the chirps and the vendors had special methods to cause the insects to make sounds.
Try to put two male together in the same jar, you will see. Those were put in individual box are definitely for fighting. People hear sound because stronger one usually have louder, brighter sound. I know some people buy those thing for fighting and bet. In some Chinese traditional animation movies, the legend one can even fight with Rooster, though we all know that is not the case
I never bet or gambling, but when I was still a small kid, I catch those small insects fighting with my friends all the time. At the time, there is no much entertainment as for now