That boat sailed a long time ago.
I do like pleasant stuff. Please, if you want me to read your email, don't send me plain text emails.
I do like pleasant stuff. Please, if you want me to read your email, don't send me plain text emails.
It's only when I don't know you and you're trying to sell me something that you need to make the email visually appealing.
(not much can be said for badly designed marketing messages though)
To give a very practical example, I sign up for newsletters from FontShop so I can be updated about new fonts. The email includes images to show how the fonts look. The utility of these emails would be drastically reduced if they were to use plain text.
Reference: http://www.fontshop.com/blog/newsletters/june2011a/