Well, of course I'm the only one with a key.. unique key configurations is kind of what the whole lock idea kind of depends on. Not only that but these keys are a one of a kind formation with something like 256 degrees of pin randomness due to the circular configuration. No two are alike.
Fine print: For the exception to this rule, see my recent posting about Kryptonite U-Locks
Also, if your bike is locked good enough that the only way someone can remove it is to destroy it, what use is it to them?