You guys been playing a little too much Team Fortress 2 over there?
Thought you'd give PAYDAY 2 the whole "pay-to-unlock" crate system, too?
Take a look around you. Nobody plays TF2 anymore except to get items that are worth as much as a key to unlock the mountains of crates they've built up.
Counter Strike: GO players just stop playing because they don't have any option to get rid of crates they don't want.
I'm almost tempted to go get Battlefield Hardline. At least THEIR crates don't need some bullshit key.