The limited edition PS4 for Destiny: The Taken King first appeared for pre-order in UK, priced at £399.99. Unfortunately prices in pounds arent the best to gauge the MSRP of a console in the rest of the world due to the large discrepancy in exchange rates (£399.99 translates to a whopping 556.81, and $621.06).
Luckily the spiffy white console wont be that costly in the rest of Europe, and presumably in North America.