More thoughts. If you get a puppy from a reputable breeder, they will want to keep in touch and you may even end up with new friends. They will be on the end of the phone if you have the slightest problem or worry, as breeders we care what happens to our 'babies' even when they are pensioners.
I have had a phone call tonight from someone who has two of my 'puppies' , one of them is in the vets tonight as he has ripped a nail out of his foot and the owner is worried sick as he has never spent a night away from home before. He is five and the other one is ten, and I get calls regularly telling me what they are up to.
If you have read about 'Handsome George' getting a second place in a show at Scotland, thugulike will tell you that the breeder of their Mastiff encouraged them to show him and even handled him at the show for them, and they now have a dog that has qualified for Crufts at his first show, and they never intended showing him. They really have a dog to be proud of.
This is the link to the Kennel Club breed standards, each breed is in a 'Group' such as Gundogs or Terriers, so click on a group and look at all the breeds, and if you scroll down it tells you what they should be like. The club details are at the bottom.
http://www.thekennelclub.org.uk/item/435