I once had someone tell me they dislike Gemini because they aren't fans of wooden coasters. Tongue firmly planted in cheek, I asked them how that was at all relevant to Gemini, and they looked thoroughly confused.
I don't understand why people have such a hard time grasping that Gemini, Mine Ride, Adventure Express, and the Texas Giant aren't wooden...
Its pretty easy to see why people have trouble grasping that Gemini, AE, etc.. are not wooden. Most people in the park don't give a flip who the manufacturer is. Most don't care about the specific dimensions, length, etc.. on a coaster. They only care about what they see and what they experience. The experience side speaks for itself, but the "what they see" side of things on the coaster you mentioned are not so clear cut. You look at Adventure Express or Gemini from a distance, and what do you see? A coaster sitting on a wood frame; lots and lots of wood. You don't examine the track itself, you don't really even care about the track itself, all you think as you walk up to the ride is the layout in front of you, supported by a multitude of wooden supports and its a clear cut wood coaster in their mind. The average park attendee simply does not care about the subtle differences b/w a ride like The Racer and Adventure Express even though they are neighbors.
This applies to most everything in life. The more passionate you are about something, the more time you spend learning the small details about that passion. Someone who is passionate about baseball probably knows a good bit by now about on base percentage, slugging, whip, etc... A person who goes to 1 or 2 games a year and watches another couple dozen on TV (like my wife) only cares that hits are good, homers are better, what the hell is OPS?