I'm not Laura, but one reason showing is important is so that one's eye does not get kennel blind. If you never see your dogs lined up with others' dogs, it is easy to no see faults... and lose the ability (if one ever had it) to see what a girl needs to improve on.
Performance events are important as well, titles are not just bragging points but will tell you the dog is able to work at some level with reasonable skill. Trainable, smart, etc.
If a breeder is not just a breeder but has a real program, at any given time the majority if not all of their dogs should have some title. Maybe not all CH, but a title. That doesn't mean that now and then a breeder won't decide to breed a girl with no titles, but that should be the rarity. Their pedigrees should not have holes in them generation after generation (dogs with no titles). If they do, I'm not saying they should not breed but their price should reflect the lack of investment in their dogs. And there is no time a girl should be bred without clearances.
edit: if you have the registered names for her dogs, particularly Gracie and Ben since Leila I found easily enough, just post them or PM them - I will be glad to put them on k9data and it will take me less than 5 min per.... which of course will make it easier to verify clearances or lack thereof. On Leila, the k9data record has nothing verifiable - nothing on OFA. One can post 'clear' all day long but if there is no way to independently verify it, they may as well not have anything posted for an educated buyer would never accept that.