OK I'm getting into this a bit late and I tried to read everything but....
Well Baby (she's a chi/mix) and Mira(chi- poss mix) were only $75 b/c we help out w/ a rescue. We don't screen like most. No home visits. We like to see the people w/ the animal and we talk to them. Each person works w/ one dog and if someone likes the dog we talk and they interact w/ the dog, if all goes well then they get to talk to another person reguarding adopt (cost, vet info, etc). We try to fit each dog w/ each family. We are a non proffit so the cost covers spay/ ntr and shots. Every dog is forstered in a home so we can see how they are w/ potty training, other pets, etc. It works out really well. Plus most dogs are taken from a kill shelter from doggie death row.
As for our newest addition a drk brindle boxer, we got him for $300 down south but up here he would be btwn $900-1500, a reverse brindle (we were supposed to get his brother but he passed away) can go for as much a $3000 up here.
I can't see spending that much for a dog but that's just me. See I just put all that money into vet care and extras... My girls get clothes and the new guy gets toys.