Oakley 4Runner

Went to Oakley's corporate office to get another set of Radar glasses and saw a 4th gen 4Runner on display in the front. I traded in a pair of Oakley glasses I got back in 1987 for $60.  They gave me 25% off toward my new glasses which means I got $50 off.  That means the old pair only cost me $10 after what.... almost 26 years? Hahaha.