the way I see it, there are ALOT of breeders that show "only" in conformation, for reasons of their own, that is their "thing", they don't have the time to do other sports, they don't want to do other sports, just because a dog is shown in conformation only does NOT in my opinion, make them a BYB. (tho I'm not saying they aren't either)
CGC is NOT a title, agility in my opinion is not 'working' , (tho if I'm persuing agility I'm going to a breeder who does agility and does it good with their dog),,that is not to demean agility, but to me it's a "sport", Herding is working, Schutzund shows the working ability of the dog, Obedience tells me they have one smart dog and put alot of time in it.
I would not dismiss someone who showed in conformation only if it was a dog I was interested in, tho that is not my 'thing' .
There are alot of dogs out there, that have titles all over the place that I wouldn't consider, and then again there are dogs out there that have no titles that I would consider as well..
It's all about "the dog",,