At Wonderwool for the last couple of years there has been a man there with Cotswold fleece and a couple of his sheep on show. His fleece are particurly good and he gets a lot of money for them. His top fleece had already been sold for £100 and was on its way to America after the show. The other fleece were between £30 and £50 each.
Now I'm not saying you would get that amount of money. He looks after his sheep in such a way as to keep their fleece lovely i.e. no vegetable matter in them and I think they are inside during the winter, but there would probably be a market, either on here, on line or at your local spinning guild, for more than you get from the WMB