I've found that my houseplants do a lot better since I got an indoor fountain. During the winter when the heat is on, my house gets pretty dry. And as my house plants have shown me in the past, they don't like it when it's dry.
I've tried using a squirt bottle to mist the plants and was even doing it more that once a day but having a little fountain is a lot easier.
Another benefit is the soothing nature of the fountain. My living room now has a zen like atmosphere that you'd pay big money for a luxury spa. Especially when my kids plug up the spout with gum and water starts shooting all over the house. Now that's relaxing.