I'm going to have to disagree here... I think they *are* a bit on the dim side compared to a lot of other livestock. I do not think it is coincidence that a bunch of sheep is called a FLOCK, a la chickens, rather than a herd a la horses/cattle/goats
I mean, they are brilliant at
being sheep, I would be an abject failure at it and they are PROFESSIONALS. However their inclination to think or learn seems to pretty much begin and end with the subject of Food. And when they are in a running-away mood, the brain TOTALLY shuts off. Worse than a TB horse, LOL. (Pretty much all the sheep breeders I've talked to this spring feel the same way about this, btw, even though they do love their sheep)
When I just had two sheep, they were not real happy about it. As soon as the other three arrived, the original two just turned into much different and more "settled" critters.
AFAIK the only two likely ways to make money from wool are either a) raise it organically and be a very energetic marketer; or b) take extreme and unusual pains to keep your (special breed) sheep exceptionally, exceptionally, exceptionally clean and free of any vegetation or bedding in the wool, then work hard to get to know your local handspinner/fiber-arts type community.
JME, good luck, have fun,
Pat