You can find many spray repellents and granules as well as six-packs of deer repellent stations for $12 to $20. Spend $20 to $50 and you can buy larger amounts of repellent, such as 32-ounce concentrates and 1-gallon ready-to-use liquids. Lights and netting are also commonly found in this price range. Electric shock repellents typically cost a bit more than $50, while motion-activated sprays cost around $70.