I believe they are unless you are marketing a marketing product to marketers in which case it will usually be well received.
Now, for the common audience and especially in the field I am in, I feel that people are tired of these marketing structures, the long testimonials and sales letters, the calls for actions, the cheap graphics, the fancy price tags + a whole bunch of marketing strategies that are on the edge of ethical.
I noticed in my last efforts that ABSOLUTE simplicity works really well.
No need to dilute the message behind fancy graphics.
Give it to me raw - that's what I feel people want more and more!