I'm with MyCoolFitz - I don't dare set foot inside a casino. I had a gambling problem as well as a drinking problem. I relapsed on both, once in Vegas and once in Biloxi.
I also found out that to keep any lasting sobriety I had to change playgrounds (bars) and playmates (drinking buddies). As a result I rarely see anyone that I have ever seen drunk before, so I have avoided your issue.