The Fading Highlighter

You love to mark up your textbooks while studying but you know that it will decrease its resale value. Well not anymore. Quirky proposes “Fader”, the fading highlighter. Highlight whatever you want and 5 months from now, magic will happen. All traces will disappear and your textbook will look mint again and ready to be sold. How much are you willing to pay for such product? Price is TBA.