On average, what's that patient worth over the relationship you have with him/her?
The internet revolutionizes both sides of the equation.
Facebook, Twitter, LinkedIn, and other social media sites are marvels of the modern advertising world, because the cost to be seen by a large local crowd is virtually zero. When you can nurture a prospect into a patient for nothing, it doesn't take much to give you a killer ROI, right?
On the other hand, legions of unsophisticated marketers are getting both sides of the equation wrong.
They invest a lot in hoopla, spin and hype to get strangers to notice them (once), and then, once they borrow a little attention, they put everything into a one shot transaction, which few people engage in, and those that do create little value, because the permission asset is then discarded.
Dates, not singles bars. Subscriptions, not vegomatics.