Yes, there is such a market, but it's mainly businesses interested in numbers that customers can easily remember. This is the first I've heard about someone wanting a personal number.

>I received a call today from a person -- he presented himself as a numerologist from Vancouver (I'm in Toronto) -- wanting me to sell my home phone number.
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>My home phone number, as he said, included the ages of himself, his wife and his mother. So irresistible it appeared to be, he offered $500 immediately and increased the amount to $2000 a minute later.
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>It sounded pretty sincere; still I had to say no.
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>I recall a similar call I got about 4 years earlier from another person offering same amount of money for my home phone number for it included a word describing his business.
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>It's not a riddle :) I wonder if a market exists for phone numbers same as for catchy domain names.