I still don't know why.

[flewellyn]

dubbug why do people say "a penny for your thoughts"?
Flewellyn I don't know.
dubbug and they don't even give me the penny afterwards!!
dubbug plus, my thoughts are worth more than just a penny...they're hard to come by, so they're rare
dubbug AND, I don't think that much, so extra rarity