That's how I feel about rescue. I know when I rescue I give a dog a safe loving forever home and I'll take the bad with the good. Rescue isn't easy because of all the quirks and baggage that comes along with an animal - but I wouldn't have it any other way. I have six dogs and love them all….believe me they aren't perfect, but either am I.
But, Vicki, you are in the minority. There are lots of people that choose to rescue a dog because they feel they are getting 'a good deal' in the money department. Or because they feel like that is the socially responsible thing to do, rather than purchase one. And most people are VERY unlikely to adopt a dog that has a fairly certain likelihood of a lifelong disease. Most people want to adopt a healthy, young, dog who is free of behavioral problems. And those dogs that fit that profile get snapped up really quickly in rescue.