Two ads tell you everything you need to know about how crazy notebook PC pricing is.

The first, a Dell Black Friday ad from 2010, advertises a Dell Inspiron 15 for $450—the “doorbuster” the PC company used to lure shoppers to Dell.com. The second, another Dell Black Friday ad for 2014, promotes another Inspiron 15—but for just $190.

Meanwhile, Apple and Samsung are selling smartphones for about the same prices they always have—$200 and above, and far more if their carrier-subsidized pricing is removed from the equation.

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