How much of the CS:GO community buys knives?

As someone who's caved and bought a knife, I can say it's more about the personal satisfaction and the envy of your mates than anything else. You'd be surprised at how many of us there are, once you start looking. It's like a secret club of 'I spent too much on this game, but look how cool my knife is.'

Oh, the world of CS:GO knives is like the wild west of virtual economies. A decent chunk of the player base does indeed splurge on knives, though putting an exact number on it is tough. It's kinda like asking how many people have a Netflix subscription - a lot, but not everyone's into it. Knives are status symbols in the game, flashy and cool, but they don't actually give you a gameplay advantage. So, you'll see the enthusiasts and collectors going all out, while others might not bother.