So I recently bought a lovely new laptop, one that can play most relatively modern games (nothing too fancy, but so long as I don't push the detail levels too high everything is fine!). The first thing to do when playing around on a new computer is to install a few games and check out how well everything runs on the new hardware, so I installed and played a few games that are part of my backlog.
Then I hit Civilization V.
I'd bought the game a long while ago, in some steam sale or other, and had been buying the DLC when it got really cheap. I knew my old laptop would struggle with it, but this new one should easily cope. Over 1000 turns later, I think the testing phase has long finished!