This could be good way to advertise bitcoin in a way because we all know that E-sport game tournament is known to hold big events with a huge sum of money. Another thing is that there are a lot of sponsors in a specific tournament and a lot of us are a big fan of every game where whenever an event is taking place, the events are is flooded with fans of that game and considering bitcoin as a prize money, is a good way to spread awareness to a lot of people.