Windsong
FACT: Html email out-pulls text. Whether we like it or not... its now a fact. If you have to use text though (and both myself and Mike do at times) check out some of the interesting stuff being talked about over at Clickz concerening battling Spam.
http://www.clickz.com/feedback/buzz/article.php/2196571
I fully understand your postion though and to be honest its driving us all nuts. As a copywriter it can be good for online copy because it makes us think a lot more and find stronger long term solutions for beating the spam traps.
As you know if we use the terms "click here" in email it is a point towards spam. If we use a size 14 font in the headline... another point. If the font is bold and in blue/red... well you know where I'm going. Its not going to go away but if you get your words right it helps.