I love birds dearly, which is why it breaks my heart to say that the worst thing that someone can do for birds is to 'rescue' from pet stores by paying them for abused, neglected, poorly bred (etc) parrots.
Yes, it will matter to the one individual bird. And that is a profound thing! To save and improve a life is
not something to put down. Truly, this I know.
But for every bird that someone rescues in this way, the store, the owners, the bad breeders... all they see is
money. They don't feel bad for their actions. They are encouraged. And they will breed more.
I've worked in 3 different pet stores, two of which were the largest chain pet stores in the USA. Trust me, and it breaks my heart-- this only encourages the sale of even more poor birds.
If you want to rescue budgies, PLEASE check out any local rescues! Many rescues are full to overflowing with budgies, cockatiels, and other parrots that NEED homes and no one is making a profit on them!
Just checking on petfinder, which is only one listing service:
http://www.petfinder.com/breeds/Bird