Casio Slim Graphing Calculator   - FX-9860GSLIM $49.99

• Buy.com has Casio Slim Graphing Calculator   - FX-9860GSLIM for $49.99 with free shipping 
• Lines x characters 8 x 21 / Screen Size (Pixels) 64 x 128
• Next lowest price is $77.9 ( Google Product )
• 4/5 customer reviews on Amazon ( Reviews and Price at Amazon )
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• Amazon (J&R Music and Computer World) has it for the same price. (link)