I have not found an av program that provides any better protection than anything you can pay for. I suppose if some are afraid to learn a new system, then they might want to pay for what they know. Now I am talking software besides the OS. I use a combo of avg, superantispyware and anti-malware bytes. All free and take up WAY less resources than any flavor or norton or mcafee, with better protection.
I cant stand how adobe makes people jump through hopes to use their software, so I go gimp or some other program to get the same results. Again, I am not a professional designer and so there is nothing adobe does that others do not. You can argue shockwave and flash but those were developed by macromedia, not adobe.
I am not trying to break anyone's arm, just saying that there are free programs out there just as good as anything you pay for and only extreme circumstances(or dislike of learning a new suite) is the only reason I see to for not going free.
just my 2 pennies.
Nod32 from Eset performs better in terms of catching viruses, etc. in the wild. I perform Windows installations for others and for clients. I set all of them up with free software as per my guide. On the other hand, setting up free software often requires a "few more hoops" than the paid versions. Some people have the money and do not want the fuss. It's a trade off, not a universal. There are few "always," never's,", etc. in technology. A user's needs should dictate a solution.
I've been using The Gimp for about 8 years, OpenOffice.org from the time it was StarOffice in the late 90's, Firefox since its early betas, Inkscape and Scribus for many years. Most of the software I use is open source, but I understand these tools are not right for everyone. OpenOffice.org is, by many standards, a better office suite than Microsoft's; however, many users are best served by the Microsoft suite. Similarly, at one time Adobe had horrible user interfaces; however, with their new Creative Suites, this has all changed. The Gimp, although a wonderful application, may not be as intuitive to some. Software selection involves more than price alone, and the choice is not about better/worse; it's about fitness for a purpose.