Sony Online Entertainment's sale today on Station Cash. No, it's not cheaper to buy, but you get a lot more for what you buy.
Until 11:59 p.m. PST today, all Station Cash purchases receive a bonus 25% Station Cash above and beyond the normal amount. That's not counting various games holding their own sales within the in-game marketplace, meaning that you could wind up with more Station Cash and individual items costing less money. So it's sort of like everybody winning, except it's really just you winning multiple times. But get on the deal soon before it evaporates.