I paid 22.30 for Castiel, just for the sheer fact dragon's aren't common in Adelaide, Aus. The price for a standard VT ranges from 8.99 - 12.00 dollars (12 being the most common price at LFS) CT's are usually from 10-15 dollars.
Females usually range from 9-11 dollars, despite the fact they are particularly rare here. I'm willing to eventually pay $100 for a breeding pair of HM's from Brisbane, as they are stunning and there is no way I'd find that standard down here at all! But that is well down the track :P