Still some demand for them and $55 dollars is an expense plenty of people will pay to keep a system running or to tinker with an old board.
Hell, I paid almost $50 for a K6-III+ not long ago, and the Q9650 is orders of magnitude faster.
...rightful liberty is unobstructed action according to our will within limits drawn around us by the equal rights of others. I do not add 'within the limits of the law,' because law is often but the tyrant's will, and always so when it violates the right of an individual. -- Thomas Jefferson