Interesting for sure. I would call it a form of "recreational gambling" although $5 a pop seems very high. I agree it could become a potentially risky activity for people who are more vulnerable - quite a few in Queen West!
The Gambling, Gaming & Technology Use Community of Interest brings together addiction and mental health service providers, researchers and subject matter experts in the fields of gambling, technology/Internet use and video gaming to collaborate and share knowledge on emerging trends and clinical best practices.