I think the price is entirely reasonable - for a beautiful cake with, as OhdearNigel says, hours and hours and hours invested in it. That one isn't, though (especially taking into account how much of it is not actually cake
).
Everything to do with weddings is more fraught. I do loads of cakes for family and friends (not for profit, or even for costs, just for love) but I would never take on the responsibility of a wedding cake - it's just too important to everyone concerned.