The case for motorcycles. Why not use one?

[bones33]

As of this writing 6 of the top ten on this site are motorcycles or scooters. It's no surprise that these are very efficient forms of basic transportation, witness thier widespread use in developing countries where fuel is a large expense.

For most commuting requirements they fit the bill very nicely. They are reliable, cheap to buy, cheap to own, easy to fix and augment owning a vehicle with carrying capacity well.

So a question to the forum participants: Who ISN'T using one that would like to, and what's keeping you from buying one?