I was a paying Norton customer.  i am now a user of Grisoft's AVG. 

I'll tell you why I was utterly disappointed with Norton.  I had a computer crash which required total re-install ( thanks Microsoft for your round of updates in April 2007 ).  My paid-for Norton subscription was not recognised by the re-installed Norton software, because it generates a random serial upon each installation, and my subscription was for the previous serial number.  How evil that sort of fix-up can get towards honest customers is just beyond me to swallow.

Eternal Hobbyist