I'm not talking about it in terms of the profits to be made from using email as a marketing medium, I'm talking about the economic imbalance that exists between those that cause the problems (the black hats) and those that can fix the problems (the white hats). There's not an awful lot of money to be made in the anti-spam space right now. Not nearly enough to get the attention of the serious money anyways. I'm thinking it might take some sort of regulatory distortion to get a better distribution of cash. A forcing mechanism, a la the Y2K roll-over might be what it takes to get some serious attention paid to innovating the solutions at a faster rate than the black hats.