I bought a Cockatiel from my breeder to see how well it would manage at home. It did great so I liked that part.
I even tried to take it home unweaned but they wouldn't let me! +1 point for them right there.
Their price was not the lowest. It was moderately high yet not ridiculous. They offer 1 free grooming, 1 free week of vacation boarding and 1 month of free food to go home with the bird.
I visited the shop for several weeks prior to the cockatiel purchase and then many more times before reserving my Grey. I was watching for how they handled their birds and listening to them give advice to their customers.
I asked many "loaded questions" that many other shops had fallen for and taken the obvious answer to. Example: Is a fully clipped Cockatoo safe to come outside on my backyard deck with me? Most will say sure it cant fly! (Actually cockatoos are very lightweight and can fly while clipped given a slight wind.) or another question, Pellets are alright to feed the bird 100%? Most will say no, yet some horrible stores will advise fruits and veggies as not nessecary given a pelleted diet.
They tried to persued me not to buy the bird for a short time informing me of all the "bad things" about birds... plucking, screaming, attention, maintenance, etc.
-A bird is so sensitive of a pet in that a poor one will cause you unmatched frustration. Search for a breeder as if you were looking to hire a CEO to run your billion dollar company. I hope my methods mentioned above help you! Read lots of magazines and books, do your homework for several weeks while looking for birds.
And most important!!!!!-> NO PRESSURE! <- Leave a store that attempts to force you into reserving a bird or buying it on the spot. Ideally they should send you home to think over a purchase before letting you proceed with it.
Good luck on your search! The more effort you expend the better the bird you will find.