My experience of moles is that they come along and go again once the food supply diminishes. If you get the moles removed while there is still a food supply then other moles will move in....actually thats the same as foxes, or indeed any other wildlife. Food and shelter attracts, lack of food and shelter makes them go. The issue with moles is that, unlike foxes, you can't control the food and shelter. They do leave the soil in wonderful condition though. I agree with Buenchico, live and let live.