Its not so much the breed its the breeders reputation that regulates the price of the chickens. Sorry but that only comes with time. If you think you're gonna flip chickens it doesn't work that way
I'd say the most pricey birds aren't even a specific breed...for me to pay more than the bottom $ they would have to be ones that have good breeding lines, well taken care of and show results--A big bonus!
Anyone who is going to buy for backyard flock have their own preferences, likes/dislikes and experience with different types of birds.