While I don't think you need a gaming machine, if you train or make presentations from your machine, some of those bells and whistles are worth the minor costs. Don't buy the cheapest thing you can because you don't want to appear frivolous. Office and the OS need RAM, training may include a video clip that reinforces your point, PowerPoint may hold more attention with better graphics, etc...
My opinions are not necessarily my employers.
Rules and Regs minus Relationships equals Resentment and Rebellion. John Maxwell