Originally posted by Tustin
Sorry for the late reply but the 10 key one is generally the best. If you have 30 keys then getting 9 items from buying 3 10 key crates with a slightly smaller chance to get rare items seems a bit better than only 3 items with a slightly higher chance of getting a rare item if you were to buy only one 30 key crate. You might be guaranteed a rare item if you buy the 30 key one but there's a high chance you'll get one out the 9 items you would get if you bought 3 10 key crates instead. Hopefully that makes sense but it just seems like the better trade if you buy the 10 key one.
Thank you for the response. Yeap, I've been using the 10 key one get rare ofter and sometimes legendary and epic with it!