The hatchery route for your goals is not a bad option. Not all hatcheries are the same. They have different goals, different methods, different business plans, and different people running them, so you are not going to get the same quality bird from all of them. Many keep their own flocks and select their own breeders, some rely on contract breeders to supply the eggs, and some do a combination. Some that we think of as hatcheries don't even hatch the eggs but drop-ship, which means they get their chicks from hatcheries that do hatch their own.
It is hard to generalize, but I'll try anyway. Most hatcheries we buy from use methods to mass produce baby chicks for the backyard flock. Their proces reflect the mass production idea. They use the pen breeding method, which means they might have 20 roosters in a pen with 200 hens. This is a proven method to maintain genetic diversity, but they have no control over which rooster mates with which hen. This means you are going to have less consistency in the chicks, plus you are generally reinforcing certain characteristics, but not as intensely as if you were carefully pairing specific roosters with specific hens. Since the hatcheries are generally going to select the chickens for breeding from the acceptable ones that hatch, hens that lay early and often have a higher chance of having offspring selected for the breeding flock. So over time, the entire flock moves to better egg production and earlier laying.
Since they are a commercial operation where they make money based on eggs laid per pound of feed fed, they also tend to eliminate the ones that are not laying and maybe the ones that go broody. So you tend to get offspring from chickens that lay a lot and don't tend to go broody as much. Of course you can get a dud every now and then, depending on how you classify a dud, but in general you get chickens that lay pretty well compared to how the breed is supposed to lay. The roosters will inherit the same traits.
Breeders on the other hand are not nearly as consistent. Each has his/her own goals and they may be quite a bit different. Some may be breeding to win a grand prize at a chicken show. Productuion qualities may mean nothing to them, or sometimes even are to be avoided since that might interfere with showing. Some breed for shows, but also for some production traits. Some don't overly worry about how many points are on the chicken's comb, which is inportant if you are going to show it, but concentrate on production. I even knew one guy that was developing a strain of six-toed Cochin.
If you can find a breeder that has the goals that match yours, and the breeder knows what they are doing, this is the best way to go. But instead of just blindly buying from someone who calls themselves a breeder, I'd personally go the hatchery route. Since production seems to be your goal, I think you are more likely to get sopmething closer to what you want.