Casio LK-S250 Casiotone 61-Key Portable Keyboard with Light up Keys, USB, purchased but didn't use, sells for $259, asking $75 Slim & Stylish Portable Design- With the LK-S250 you can enjoy music whenever and wherever you like. Its compact size of 930 mm x 256 mm x 73 mm is 30% smaller in volume than t...