Ahhh, the Redneck Riviera. Been to Tunica many times as I had a major client in Memphis, though not too recently as he's not a client anymore.
IMO the best place to stay was Sam's Town. I could get a room comped just about any night of the week and I am by no means a big gambler. Worst case scenario I had to pay around $25.00 a night when I wasn't gambling.
There are some decent golf courses if that's your gig, but for other entertainment I recommend going up to Memphis. Short drive, and you've got Graceland, which is a MUST if it's your first time to Memphis and tons of great BBQ places to sample.
For night-time entertainment, the place used to be Platinum, but it was closed down about 5 years ago. That place had a main stage and 3 different "cages". It was the best lesbian show's I've ever seen, live or on video. They had these 2 red-heads - wow, but that's gone. Anyway, there's 2 or 3 places still left to go to. Again, been a while but my best guess is the concierge can direct you to a good place or even have the girls come down to your room for a private kinda show.
Have fun.