How many coasters have you ridden that are now defunct (and not relocated), and do you have any fond memories of them?

My defunct credits are:

• Disaster Transport, Cedar Point
• Wicked Twister, Cedar Point
• Dueling Dragons/Dragon Challenge, Islands of Adventure
• Fire in the Hole, Silver Dollar City
• SandSerpent, Busch Gardens Tampa

I never got to ride Dueling Dragons while the two tracks dueled, and that’s still something I wish I could have experienced. I liked the concept of two completely different layouts with near misses over the course of the ride experience.

Honorable mentions to Iron Wolf at Six Flags Great America (now Firebird at Six Flags America) and Mantis at Cedar Point that are now floorless conversions.