My post should read:

First and foremost, sales taxes do not go away. Only the naive will believe this.

To tax the materials for direct mail is like taxing any product at the wholesale cost. You end up with double taxation. Tax increases only prolongs poor money management by the government. It will also affect peoples jobs in the direct mail industry. If you want to learn how much direct mail contributes to the workforce and economy you can read the Power of Direct Marketing: http://www.nmoa.org/catalog/dma/dma_powerofdm.htm