Test Drive Unlimited - the best driving simulator of all time. This game has been released in 2006, but it still looks astonishing and pretty much playable.
BioShock Infinite. Have you played any games that made you cry? BioShock is the only one for me. It's probably the best story-driven game...
Yes, it will serve you well for at least a decade. Maybe you won't be able to launch the newest games on ultra settings in a few years, but it will work fine with mid-high settings.