The Vivos were a Christmas gift; I did not buy them myself, and Christmas is a while away. (I also don't get much in the way of Christmas gifts anymore, being 20 years old.) They are damn pricey, though. I did notice the 35$ one, but if I'm going to do Z-Health I should like to get a complete phase, not a quasi-comprehensive introduction, and all of the others cost at least 95$. I'm not bankrupt or anything, but I don't have 100 bucks lying around. I will certainly consider putting aside some money though, it does seem intriguing.