I love Ruth's Chris and eat there as often as I can.
We once rolled in there wasted on St. Patrick's Day, wearing ridiculous green outfits, and dropped big money buying an early dinner (remember, it was SPD) for our friends. Everyone was extremely drunk (read: loud) and I was just waiting for us to get kicked out. I guess we were spending enough money that they let us stay, so we made it through the meal.
Anyway, get the Cowboy Ribeye. It is heaven on a plate.
With all of that nonsense said, I use the same cheap grill that came with our rig. It is not a matter of money, but the free grill gets the job done and is made for the bracket on the side of the rig. Win.