Quote Originally Posted by Skyblade View Post
Quote Originally Posted by Jinx View Post
Damn, how much money you got, Locky? It's like 100k an article of clothing in the store at Lumiose. I've got next to a million and I still won't shop there!
As your style points increase, the prices decrease. This also includes the prices at the Stone Emporium, if I heard correctly, as well as the other shops/emporiums throughout the city.

I am currently only a Marquis. I actually heard that it's possible to reach Grand Duke, above Duke. But, since Duke is apparently the rank at which the Elite Four start visiting (while Marquis is the rank at which the Gym Leaders start visiting), I suppose it is quite possible that I need to beat the Elite Four before I can become a Duke.

Serebii's Page. Note the very bottom. Grand Duke, booyah.
Last time I looked at the Serebii page they only had up to Duke =P. And yes, Style points reduces the price of the Mega-Stones from the Stone Store, up to as low as 10k. But Style does not directly affect costs in clothing stores from what I've seen., however there is a coupon you're able to get somehow that does reduce said prices.