http://diggy.i2p/articles/juicers.xhtml
Because, if you juice the pulp again twice in a regular juicer, you get the same yield as an Angel (this doesn't excuse Eujuicers' pretending that you can come close to achieving that feat in a single run). For proof, in this vid (27:00), an Angel juicer gave 469ml of juice per 658g of red cabbage, or 71ml per 100g. In my Sana tests, red cabbage gave 40-47 ml of juice per 100g, so let's consider a middle value of 44.