No, we're not crazy. We just pay $30-$40+ to wait for hours in line to be locked into machines for 2-5 minutes that drag us up where the air is thin (losing oxygen to our brains) so that we can be throw down nearly-vertical tracks supported merely by steel or wooden beams with the sheer wind force distorting our features and pummeling into our lungs, flipped and twisted upside down to deliberately skew our equlibrium, jostled from side to side until our ears ring, dropping our beloved possessions into swamps/bushes/gravel/concrete/people below where they will never be found again, and we end up smiling when it's all over, racing one another back to the entrance so that we can wait in line for a few more hours.
Oh, wait... maybe we are. ;)
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Po!nt of View: A different look at Roller Coasters.
http://www.crosswinds.net/~justmayntz/thrills/index.html