Why is the owner selling the babies for $80? It seems interesting to me. They're not exactly a difficult to acquire species by any means, but $80 seems... minimalistic? Almost like a, "please get these off my hands". But then again, I'm in Canada and the average GCC from a breeder starts at at least $200.
I think that if you're going to buy a baby, the best thing to do is to support a breeder who cares about the species and invests time into the babies to ensure they are well handled, cared for, and healthy before coming home. That they are weaned onto a healthy diet of veg and fruit, have fledged, and like to be handled. I'm not saying this person doesn't do that, but I agree, it seems like she really is just trying to get rid of the birds and they just go to whoever can buy them off her the quickest...
I just think if you've been wanting one for a long time, why not wait until you feel like you're comfortable with whom you're getting the bird from? If you are though, by all means go ahead. These are just my personal thoughts.