Next week, at a press event at the Yerba Buena Center for the Arts, in San Francisco, Apple will almost definitely take the wraps off a new iPad. Smart money is on a top-flight tablet with improved cameras, more powerful processors, and a high-resolution "Retina Display."
But according to one source, Apple is also prepping a bargain-priced 8GB iPad 3, which would compete with devices such as the Kindle Fire and Barnes and Noble Nook Tablet.

Each time a hot new Apple product appears, it causes a ripple effect in the marketplace, with a flurry of consumers buying, trading, selling, and reselling all versions of the item. The expected introduction of the iPad 3 on March 7 has already caused a mass trade-in of older iPads, and all signs point to a red-hot market for iPads: original, iPad 2, and iPad 3 alike. Haven’t we seen this one before?
Last March, a flood of used iPads hit the resale market, prompted by (what else?) the introduction of a new iPad (#2). Sub in a 3 for the 2, and it’s pretty much the same story right now—only now, since there are not one but two existing iPad models, and there are far more iPads in people’s homes, the amount of buying, selling, trading in, and reselling has hit the roof.