I have been asking myself the same question up till recently. Juicer shopping is a chore. The number of features and prices of juicers to compare makes choosing a juicer a difficult buy.
I recently discovered the best juicer comparison site on the internet which has made it easy to choose the right juicer. It not only has heaps of juicer reviews to read but you can add your own on any juicer. Best of all if your favorite juicer is not on the site you can add it and leave your own review.
The other great site I have seen with regard to any whole/raw food health & fitness appliances is Vitality4Life. They seem to have a great range of products shpped around the world at really good prices.
I have an Oscar Vitalmax now and have never been happier with a food processing appliance :)