Nobody including Timothy Leary has eaten their own body weight in LSD, a jar full of PURE LSD is enough to litterally get the whole world high once. It is that strong(in its pure form). That aside I think he wasn't being litteral.
Once again I see an alarming trend, bull shitting when it comes to hallucinagenics. I wouldn't suggest anyone ever eat any real Peyote(not shit cactus cuttings) without a proper cleansing and spirit advisor. In fact, if you don't know how to prepare it, Peyote is quite poisoness. Deadly even in some cases( not from the hallucinations).
If you have the chance to do it right, and at the right time. It could be an awesome thing, but Peyote is not like shrooms or LSD or even DMT. It is Peyote. It is like comparing Korn to Limp Bizkit. Really truly.
Peyote is a spiritual experience, as mushrooms should be, as dmt is. LSD, invented of course, a great tool for Doctors to cure, silly, deranged or dying people of their willies.
Peyote is not sold online, what they are most likely talking about are Cactus cuttings which contains small amounts of Mescaline(basically the THC of the Peyote plant).
One other big thing, its getting hard for even real Natives to get. The "man" e.g. the US government, has spent a large amount of money killing off all the Peyote(documented). Spreading viruses, pests, and poisons around the Southern US, and Northern Mexico Border areas. For whatever reason, they want this plant gone. IF it wasn't for Shamanesque hippies, Natives, and Spiritualist & Univerisities, there would litterally be none left most likely.
What should you expect, if you eat several buttons. About four hours of the willies, followed by uncontrollable vomitting, followed by 4 to 30 days of mind altering shit fuck. If you have ever been to a reservation and seen the guys walking around taking short and overly quick steps staring at the ground in horror, those are the guys/boys who tried tripping on it without their spirit guides.
Peace.