If you're willing to put your life on the line and shop on November 23 or 24, you could get a wi-fi Vita for $50 off its normal MSRP, and a free game for your trouble.
The Assassin's Creed 3 Liberation bundle, containing a Crystal White Vita, a copy of the game, and a 4GB memory card, is discounted to $199.99 across US retail for those days, as are special Call of Duty Black Ops Declassified (black Vita, the game, 4GB memory card) and Lego Batman 2: DC Super Heroes (black Vita, the game) bundles.
Sony is also offering a special $200 PS3 bundle, with a 250GB system, the Uncharted Dual Pack, the Infamous Collection, and 30 days of PlayStation Plus. Dualshock 3 controllers will be discounted $15, to a temporary price of $39.99.