Replacing a water softener is an investment, and you’re certainly not the first person to experience sticker shock. After all, like most appliances, water softener cost varies dramatically, as does water softener quality. You could simply purchase the cheapest unit available, but will that really save you money in the long run? And will it do everything you need? Before you make your final decision, it’s important to consider all the factors that influence water softener cost. Those same factors also affect water softener performance and longevity.