I didn't ask. I think I was 10, and I just really wanted a female BP and didn't care about anything else. He said he could get me one for around $100, and since my parents were paying half, i went with it.
His shop went out of business 2 years ago, so I can't contact him anymore.
$100 two years ago in a pet shop is about what they were going for. My local pet store still sells normals for $99.