My wife retired at 62 due to health and one of the big concerns, as it will be with many, is health insurance. Medicare doesn't kick in until you're 65, and even if your company allows you to remain on it's group policy, it's generally out of your pocket. There is a limit to how much you can earn and still draw SS. In my wife's case it was approx $14,000 per year. Consider also that when you turn 62, whatever money you have already made in that year will be part of the equation, so if you've already exceeded (the $14,000), your payments will be withheld until the balance is reached. In my wife's case, she had to wait until Dec. 31 to offically retire.
As to working in the casino (which I do), I've found that my "jones" for the atmosphere is even bigger. I still go to other casinos on my time off and, although I don't have a gambling problem myself (and I'm absolutely not intimating that any one else does!), if I did, I don't know that my job would be the cure (haha).