The answer to the question in the subject is... marketing. They import to the various countries what they think will sell best.
It would be great if the bike manufacturers had a wider variety of colors, but at least they rotate in a new color or two every year (although certain colors do stick around and/or are only slightly tweaked). It would be nice if there was more variety, but then I suspect that each bike shop would need to decide which color(s) to stock anyway, so it wouldn't make a real difference.
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Slow Ride Cyclists of NEPA
People do not seem to realize that their opinion of the world is also a confession of character.
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