I might have opened 10-15 crates. The best that I had with crates was a minimal wear M4A1-S Atomic Alloy, all the rest was shitty blues.
I'm never gonna get a knive because I prefer staying with the basic one instead of wasting fuck knows how much cash and hope for a good drop that might never happen.
That being said, I'd love to have a knive. Maybe trough trading.