I understand your argument, but I'm trying to sway people away from stereotyping or making assumptions.
I play the national lottery. I know I'm probably going to lose but I want to win.
I used to manage a bookies and a lot of customers would say this, "I don't drink, I don't smoke, I rarely go out, I've not got kids, this is what I enjoy"
It's a similar concept to the lottery but it's more in your control. People can and do make good money from the bookies. Some people lose but know they're going to just for the occasional win.
Your pleasure might come from spending £40 on Argyle at the weekend, who are we to say you'd be wasting that £40 if you went to the bookies instead?