I agree with this. I'd much rather have a pup who had a little less socialization so I could intoduce things to him/her first hand. Though if the breeder really knew what they were doing they probably wouldn't make something a bad experiance for the puppy but the idea of getting a pup who is a 'clean slate' is more attractive to me personally. As a horse trainer, I'd much rather work with a wild horse with no prior human contact than one thats more 'domestic' and possibly already has issues from bad training prior to coming to me. Of course with dogs being a little diffrent I don't think I'd want a feral puppy either but its the clean slate idea that I'm refering to. However with my new little guy being brought up in a barn, there are noises that he doesn't like such as the vacum and hair blow dryer but he's getting use to it very quickly. The important thing is that I know that he isn't going to have a bad experaince if I can help it.
With the family great dane however, he was always very socialized as a pup. Not sure what the breeder had done with him but we got him at 6 weeks old. Anyway he will try and bite other dogs who are larger than a toy poodle (he's a gentle giant with his poodles and thankfully little baby Tobias) and does not like strangers at all. We found out that one of his brothers form his litter did attack someone so I would think that his issues are definately genetically linked. Though not all the pups turned out aggressive. His runt sister is a very friendly dog to all strangers like great danes are supose to be.