Can money really buy happiness?

I believe so, but probably not forever.
At some point things would get boring, even with money.

Games can really teach you a thing or two about life if you let it.
The goal of a game is to get to the end, unlock everything, and explore every inch. What happens when you've completed everything you can? It gets boring, there's nothing else to do, etc.
If you have everything you could ever want, what's the point in living? You could no longer progress any further.