Not sure how much mis-information you can put in 1 post but good effort.
Is Ian Openshaw the best recent breeder of any type of spaniels? I think even Ian would perhaps state not, he is however the most successful trainer of dogs out there.
"This guy" I assume you are referring to is Davie Lissett? Davie doesn't own the Buccleuch Affix, the Duke does. Davie is a brilliant trainer & one of the nicest blokes you could meet so not sure why you feel the need to slag him off?
Would I pay more for a Buccleuch pup rather than one out the magazines? That completely depends on the bree