why would you register for something you dont want, that is a major **** move that shows that all you're interested in doing is flipping keys.
It doesn't have to even be associated with flipping keys.
If all I want is the Oktoberfest key in MX and I don't win it, and didn't enter into the raffle for other keys then I get nothing. However if I win the topre version then I can potentially trade for the MX version. Or any other key could potentially be traded for the one key that I want.
If I personally win a key that I don't want I will sell it at cost to someone that has never had a CC, and obviously currently does not have one. I think there are PLENTY of people who meet this category. It took me about six months after joining geekhack to get my first CC, and it was because someone decided to sell me one almost at cost because I didn't have one, so least I can do is pay that mentality forward. I acquired my second CC due to a very kind trade and only have two keys still.