When I say gamer, I mean hardcore WoW or LOTRO or so on where you need really high-end graphics. For the Sims, an okay graphics card will suffice :)
When you one day own your own business, you will have to purchase high-end computers and pay for licenses for expensive software! On work experience I have used many very highly specialised chemical engineering programs, including ones for P&IDs as well as modelling new plant and running plant. The company has to purchase licenses for all this software.