I twisted my ankle in the parking lot of a Casino in Laughlin, NV... Should I sue?

I twisted my ankle in the parking lot of a Casino in Laughlin, NV... there was a pothole that was not clearly visible in the dark conditions (not adequately lighted in that area). The pothole was as deep as a quarter. I reported it to security the next morning after waking up with a swollen ankle, they came up and looked at my ankle, they photographed it. I photographed the pothole. They said that they keep video recordings for about a week, and will release them only to a lawyers subpoena. I had pain and swelling for 2 days really bad, now on the 3rd day and it is starting to feel a little better. have not seen the doctor yet, just got home. Should I sue? how much? do you feel I would be successful?