Good response rates are in the sub percent range. Nothing has changed in this area for a very long time except the web.
If you haven't set up your web store, why not?
Hi! I'd like to get an opinion on it. I'm to choose between two. Suppose you have a long list of people who've expressed interest in your product. Can you succeed in getting them buy your product through direct mail marketing without just calling them up and trying to sell them over the phone? How many of you are actually using direct mail and getting a decent response from your efforts?