I have a dehydrator, which i love. I've tried to dehydrate just about everything I could think of, and the two worst things were carrot chips and sweet potato chips. They were edible, and maybe you'll love them, but I was really disappointed.
However, i do wholeheartedly recommend zucchini chips. Neither I nor my husband like zucchini particularly, but sliced thin and brushed with a little brine or salt and vinegar or pepper just before dehydrating them produces awesome chips that we both gobble down.