Evilstepmum of course your post is a dig, how can it not be?
You say you still don't understand why anyone would buy a puppy - did you read/understand my last post? And there's nothing wrong with loving a specific breed. I'd never be without my spaniels. If you suggested to me I got anything other than a spaniel, you may as well be suggesting I get a rabbit instead of a dog. It's not the same, many breeds have very particular personalities.
It's great that you would only have a rescue, I know plenty of people that say the same. I'm glad there are people like you out there. How many dogs have you rescued?
But you can't tar all breeders with the same brush. There are a few really great breeders out there, working hard to produce lovely family pets, and eradicate genetic disease and undesirable behaviour traits in their particular breed. Often operating at a considerable net loss because they are in it for the love of the dogs, not the money. We should be encouraging and supporting them, not persecuting them.
You have totally missed the point of this thread. The 'show quality' 'lines' etc mentioned by OP and others is all about how to find a responsibly bred puppy that has the best chance of growing into a happy, healthy family pet.
Oh and all our vitriol needs to be directed towards the legal puppy farms, as well as the illegal, and working towards a change in the law that allows them to exist. And introducing stricter regulation of all breeders. I also think we should bring back dog licensing. If you read any of my other posts on this board, you will see that I have absolutely no time for anyone who buys a puppy on a whim/buys from a puppy farm/fails to undertake the proper research. But you must realise that this does not apply to everyone who buys a puppy. FWIW, I have never paid for a puppy, nor owned a pedigree dog, in my entire adult life. I speak here not from self-defence, simply from a deep understanding of the complexities of the issue.
The world is also becoming overpopulated with humans. Do you also haunt the conception boards to have a go at the new mums-to-be for not adopting?