 So I ran into an article which talks about sheep in Australia which listen to Italian opera music and their wool is twice as fine as regular wool. A bale of the super super fine (11.8 micron) wool sells for A$232,500 or A$2,500 per kilogram of wool. Regular superfine wool is ~20 microns and sells for something like A$651 per bale of wool. The article compares this to the "golden fleece" so I checked the price of gold in Australian dollars and it's A$23,928 per kilogram. So while the 11.8 micron wool doesn't compare price wise to gold it is a lot closer than regular wool. The real question is if YOU listen to opera does your hair come in finer?
Head on over and read the full article about the golden fleece 11.8 micron wool for yourself. Source: Yahoo | 
