You people crack me up.
Ruffly 20 years ago my 2e Players Handbook cost me $20 at Walden’s Books. That was for a horribly bound book with no color, bad art, and very very little text per page.
http://www.measuringworth.com/calculators/uscompare/result.php
In 2006, $20.00 from 1988 is worth...