Let's face it, for work, most people use the computer provided by their employer's IT department. For the most part, these are windows machines updated on a frequency determined by company policy. So when people on this forum talk about doing real work on a computer, they need to realize that most of that is done on corporate issued windows machines. Macs are a very small portion of the "doing real work" market. Don't get me wrong....I am fortunate to have a Mac at work and love it......but, this is the exception in most corporations.
For home use, people just don't need to update their computers nearly as frequently as the past because they are doing most of their day to day computing on smartphones and tablets. You don't need a full desktop computer to answer email, browse the web, organize photos, listen to music, write simple documents, track finances......the list goes on and on.