Let's Shout From the Rooftops - "I'm cheaper than Doc Doolittle"
You see dozens of discount emails in your own inbox every week. What kind of perception does that leave you with? Does the discount in some way make the product or service better? No? What's the take away?
Do you want to be known for your skills and talents and patient results? Or discounts? Are you in price competition with your competitors?
You can't win.
An occasional promotion is fine, but if you plant the discount thought in your readers' minds, it never goes away. Do you want to be the discount doctor???