ANSWER:
Because a basketball game is more interesting than a tennis game, when compared to the population of interested fans.
Beared dragon looks more interesting to watch, more than a leopard gecko that we always see around our homes.
Leopard geckos are weak and sluggish, therefore, their game will not be interesting as that of a bearded dragon.
A bearded dragon bouncing a basketball will look more fun and scary to watch, than a leopard gecko in a tennis court that will only look funny.
The name "Dragon" are more valuable and respectful to people, more than the name "Gecko".
