In the seed business, you generally get what you pay for. But there are exceptions, i.e. Doggies Nuts. These cheap seeds lead to poor pot, bad sprouting percentages, males in feminized seeds, and other issues that crop up from time to time. As seeds sell better, breeders raise their prices as demand warrants. And the opposite if a strain starts to slow down........
ehh, i used to feel this way, but the longer i'm around, the more i realize that this isn't always true as some top of the line breeders don't charge an arm and a leg for their gear.. i know that say sannies sells his beans for around $50 / 10 pack, which is great for what you're getting for the money.. there are some other breeders out there that don't charge too much as well, people like the blazing pistilero's, and the irie vibe seedbank for instance..
and like you said, a good ex. of pricey but not good is lick my nuts, err, doggies nuts seeds.. price doesn't equal quality in that instance.. dr greenthumbs charges a lot for his gear, but i tend to think that you do get what you pay for with him as well..
just to sum it up, yes, sometimes good genetics cost good money, but sometimes you can pay good money and get shit genetics.. sometimes good for cheap..
it's really up to the buyer to do their homework and learn about what breeders offer some good gear at good prices before spending their hard earned cash..