Decided to do a little experiment, as in buy 7 of these, open them up and then sell the stuff from them. Here is what I got
I think that this is on the higher end of luck when it comes to these crates, based on how poorly people report on doing with them
Sadly, after selling them on the market, not for the cheapest price but not with any mind blowing profits either, I made roughly about +300 coins all in all from this experiment
While I had way more success with it than I thought I would have, There really was no real profit in this gamble either. Yeah I have to agree with the people who say that you should just sell the crates and not bother opening them, if I sold the 7 crates as is instead of opening them I would have made a +500 coin profit, which is 200 more than opening the crates and selling the items I got from them