I do not have a problem at all with her asking that price for a pet (not that I would pay it) I just really wanted to make sure they were not for fighting, in which case I would have flagged it.
Reminds me of selling watermelons by the side of the road eons ago.
Make two piles one bigger than the other mark the large pile $2.00 and the small pile $3.50 each.
When people asked why some were 2 and other were 3.50 we'd just say "these are better".
It's not dishonest, it's creative advertising.
I'm sure if that guy posts $100.00 for a regulat mutt roo, SOMEBODY will pay it!