In my opinion the breeder should have got all of the pups vaccinated, there's no good reason not to.
Bens mum did you ask her why she hadn't? What was her excuse if she had one? (just curious)
My pups were booked up before they were born, and when the potential new owners came to visit their puppy for the first time they had no obligation to have the pup that was booked for them. I don't believe in deposits because I don't want someone to feel tied to having a pup from me if in fact they have found a more suited pup elsewhere or are having second thoughts about getting a pup at all.
I don't want a deposit to be the mechanism that ensures that a puppy buyer commits to one of my pups, instead I want the buyers research, enthusiasm, love for the breed, a real interest in the dam and sires characteristics, and ultimately a thorough understanding of what having a pup from me entails to be what makes a buyer stick with a pup from me.
For example, I encourage the potential new owners to have input into their booked pups registered kennel name (I send the paperwork off when the pups are 5-6 weeks old). However, even after the paper work is done the potential new owner is not tied to buy that puppy. In fact I had a puppy buyer drop out at the last minute when the pups were 8 weeks old, unfortunately his job was suddenly being restructured and he didn't know what his working hours would be. Obviously it was sad for him, but I was sooo pleased that he had told me then rather than take the pup into an uncertain situation. So I told him that it was absolutely fine to say that he couldn't have the pup and said that if in the future he thought he could offer a home to a pup then I would be very happy to help him find the right pup for him (not necessarily from me).
So I think that it was bad form for the breeder that you went to to be rude on the phone, there's no need. It's her responsibility to make sure that her pups go to the best homes possible, and if she's having trouble selling them for whatever reason then she should have thought about that before she embarked on having the litter
She's most probably frustrated by the current economic climate, but still that's her problem and not yours!
Don't be hard on yourself, I think that you made the right decision. Keep looking and don't let breeders bully you, if they care enough about their pups then they wont push a sale on someone whose unsure about something.
Mary xxx