YOUR Definition of a Roller Coaster

[Ilovthevu']

I'm not looking for a standard dictionary definition of a roller coaster. Instead, I'm looking for what you think a roller coaster is. The reason I ask is because of rides like Disko Coaster, Disko Jester's Wild Ride, Superman the Escape, Half Pipe at Elitch Gardens, and V2. I read somewhere that someone said that Superman the Escape shouldn't even be considered a coaster because it's just like an Intamin Generation Drop 1 ride. It might have been Cedar Point complaining...

So, my opinion / definition would be a ride in which the vehicle isn't stuck in one area (For instance, a Himilaya car keeps going around in a circle), and power has to be released for sometime / thus uses gravity (V2 has Lims, but than the ride lets go of them for a little bit). Another question is, is a ride like the Sea World San Diego a coaster. Can you consider a partial water ride be a coaster? Even Splash Mountain has a small "coaster portion".. Why isn't a Disko considered a coaster if Half Pipe at Elitch Garden is considered one?

Is this ride - G-Force carnival ride a coaster? http://www.youtube.com/watch?v=A42X6oF0Lig

[Luxornv]

This is what my philosophical moments at the various parks I visit are like. I've been to Orland and have ridden Journey to Atlantis at Sea World and Splash Mountain at Disney. I don't recall there being any coaster track on Splash Mountain, but there is about 100 feet of track on Atlantis. Other than that, they are very similar rides, differing only in layout and theming.

I've also thought about the disko and half pipe ruling. To me, a disko just looks like a small half pipe. Yet the half pipe is a coaster and a disko is not. I suppose something like Vertical Velocity would just be like a large half pipe then. I suppose I would define a coaster as an amusement ride on a track that releases kinetic energy with no external force other than gravity. However, by that logic, log flumes would fit into this definition. I'm just not so sure myself.

[Ilovthevu']

^It's really short on Splash Mountain. It's right BEFORE you see all the frogs and water in the air area. There are also gophers in the ceiling in a couple spots. It's a drop, than it goes up a little bit, and than it goes down. It sort of reminds me of Skull Mountain that was at Six Flags America where you almost get airtime on that one part.

Skull Mountain - Look at 1:19 - http://www.youtube.com/watch?v=5GY--JGhcMI - This ride is now defunct though.