Normally I wouldn't post in a topic where the original poster refuses to acknowledge a different point in the argument, but I think the comment may be appreciated by others.
The Loot Box, as others have mentioned, is a free system. There are a lot of lower tier items inside because it is not meant to be purely for awesome items such as the Lingerie Unsealer. This system is built around a gambling setting; the only exception is that you win "something" for the outcome.
Think of it as a scratch-off ticket. If you "win" you rarely win something more than what you paid for (normally $2 for a $1 ticket), and, if you "lose" it amounts to a worthless piece of paper in your hands. However, once every blue moon, there is a super prize that people can win worth well more than the ticket.
Now, while I admit the analogy is a bit flawed. For no matter what item you get in the Loot Box, you do "win," but as with above, it may hardly amount to something worth your time (I personally disagree with this--clicking two buttons is hardly any time for me). And, on that rare occasion, someone somewhere does win a good item--chances are it will not be you. If you do not like that system of working, then it is probably best to just avoid it.
Regardless, I should give you fair warning that your avatar is highly inappropriate for these forums (which are PG-13). I would recommend changing it before action is taken against the account.