BTW, I've seen skeins of yarn that cost $55.00 or more, apiece, because it contained other types of expensive fibers such as silk! I also know people who purchase raw wool, freshly shorn off the animal, clean it, card it, spin it into yarn, dye it whatever color(s) they want, then either knit with it, crochet with it, or weave it into other projects. (Yes, these individuals actually have weaving looms and spinning wheels, along with the related equipment, in addition to a wide collection of knitting needles and crochet hooks!) That also takes a LOT of work, especially when you want enough yarn to create a large-size afghan!!!
Unfortunately, as I've often heard it said: "You can't fix stupid!"