https://priceonomics.com/when-the-great-alpaca-bubble-burst/

(1) The asset not the product is the thing being marketed (i.e. live alpacas, not fiber)

(2) investors have unrealistic expectations (alpaca fiber would replace wool, despite the lack of infrastructure; and besides the fact that people don’t really wear that much wool)

(3) information is controlled through industry sources (most of the information the researchers were able to dig up was put out by breeding associations)