True, attracting enough buyers and sellers will be a challenge, even if a scam-free model is invented. This actually reminds me of the story of the Arizona Sto

True, attracting enough buyers and sellers will be a challenge, even if a scam-free model is invented. This actually reminds me of the story of the Arizona Stock Exchange, which was technically a better model for selling stocks, but couldn't convince enough traders from NYSE and Nasdaq to give it a try (http://www.businessweek.com/1997/09/b3516129.htm http://www.businessweek.com/1997/09/b3516129.htm).