Ilia, I agree with you.
I bought a lot of chicks as well as started chickens last year. I bid on eggbid for most. I made one spontaneous purchase from someone locally who buys large quantities of day old chicks from Ideal Poultry, then sells them once they are started. He does no breeding. I noticed immediately that my breeder chickens were much more to type, more beautiful and actually seemed smarter and had more personality than the hatchery stock. Worst of all, the hatchery chicks had a respiratory illness that ended up causing a prolonged illness that spread slowly through my flock.
I had quarantined them for a couple of weeks, before I realized they were ill, not long enough obviously, but several chickens ended up ill anyway. My breeder birds all survived, several hatchery chicks died.
This year, I am hatching as well as buying. I would not have bought at all except my first attempt at hatching did not go well (I did not prepare for it and made ignorant mistakes) and my kids were so sad (we had only 2 out of 23 eggs finally make it) I went to the feed store (i.e. hatchery chicks, these from Privett in New Mexico) and bought chicks. Again, these birds are okay, seem to be basic examples of the breed, and are not sick, but I doubt I'll do that again despite the temptations! I also bought lovely Silkies from a BYCer locally--someone who LOVES the breed and I can tell you these are amazing babies, already very typey and gorgeous.
So, I would say, buying day old or started chicks has it's perks, but avoid hatcheries when you buy and instead research local breeders, BYC and/or eggbid and other auction sites. You can contact breeders privately and see what breeding stock they have. Most are more than happy to share their enthusiasm with you. Shipping is not too bad if you use reputable breeders. Research their feedback and ask questions about how they ship. Local pick up is best so you can see the facility and meet the breeder, but not always possible.
Hatching is miraculous, fun and seriously bonds you with your chickens. I'm now hatching for the second time ever, 2 incubators with chicks literally emerging slowly as I write this (I can hear them cheeping and rolling around) and I wish I'd been patient (it's only 3 weeks, for goodness sake!) and done this all along. What beauties! I think even a mutt chick would look good to me if I'd hatched it myself! My kids have learned so much, and they are devoted to these emerging babies. Also, the upfront cost is not that much. My nice incubator,
Brinsea Eco 20, was $126 (from My Pet Chicken, cheaper if you look around more, check out the website for
Brinsea). My cheap one was $50 (LG still air). The cost of eggs and shipping was about $20-$30 total for 15 eggs (Australorps) and 36 eggs (Brahmas) from a lucky bid on
eBay. I got a doz Dorking eggs locally for $10!!!!! Or you can hatch fertile eggs from the health food store as your first try ($2.99-$4 or so per doz.)
Bottom line of this very wordy post (I'm tired from the excitement of hatching babies!) is DO BOTH and have fun!
I hope this helps! I'm a newbie, but I've become very, very chicken addicted! I bet you will, too! It's inevitable!