Lets say for the sake of arguement, that you have the best wings in the world. Now, while wings may be the best selling appetizer in the industry with pizza, “most” people still do not order them. I would venture a guess that you sell way more salads than wings, and probably a few other things.
So, in order to attract more customers on slow nights, you want to discount an item on the menu that “most” people do not order??? least not very much . . .
Imo, your idea is a happy hour solution at best. I would suggest putting combo meals together like “large 1 topping, salad & 2 liter for $12.00”. Or, if you are a discount place, have a special price on one of your specialty pizzas – or 9.99 for one pizza. My prices are random here, but the point is you are doing a deal that will appeal to “most” people – rather than a minority of people.
Or, along the same lines, instead of .50 wings how bout .50 slices?