If you are going to drink juice anyway, homemade juice is a wiser choice than store-bought juice, but it doesn't provide any nutritional advantages over the foods you're juicing. In fact, it's removing nutrients (and if you have the kind that produces pulp, all of the fiber.)
No matter what kind of juice you drink, Dietitian Becky here on Sparkpeople has recommended that you get no more than one glass per day in your diet. There's nothing wrong with juicing, but I personally don't think the high dollar juicers are worth their novelty efforts. The science simply isn't there, and there's no magical benefit to them.