One thing that will push most people to buy computers today would be because of gaming purposes. Whether this is pertaining to online gaming or stand-alone, the type of games today have increased in requirements for an avid gamer to enjoy them.
We have seen famous games such as the World of Warcraft which put focus on memory chips and video card requirements. Unlike before when video cards were limited for graphics-related work, gaming has stepped in to require higher memory in them. As a PC user, you would say that these gaming software are crazy to think that there will be people who would go through the trouble of getting high-end graphics card just to play a silly game. But the fact of the matter is that there are people, young and old, who do buy these cards even if they cost a lot.
But the question is, would you upgrade your computer to save you the trouble of doing it part by part. Some people put this in mind. If they were to get a new computer, they would consider what things they could do with it. While the usual paper work and spreadsheets will be there, gaming and other related things that they can do with computers will be inserted in the consideration circle.
Besides, if you are going to spend on a new set, then why not put in all the things you can think of when you use a PC? It is not a childish approach. It is a reality where most people today just look at PCs more than for work-related purposes.