NI, is it worth the grind?

[oposum]

Additionally, the randomness of receiving drops is a large benefit. If you could reasonably expect what drops you will receive, then you could reasonably guess what everyone would receive, given enough sets of data to extrapolate from, and if you can do that, then you can make relatively accurate predictions about anything in the in-game economy, and the wealthiest of players will be able to use that information to essentially control the in-game economy. That is not a desirable outcome, and random drops are the best way to ensure that does not happen and to ensure that there is economic mobility in the game.

Actually no, if we reasonably assume drop rates use uniformly distributed pseudo-random function, with enough data you can assume what people on average will get (over longer time periods). This type of "randomness" causes only short term illusion of randomness, over longer time periods it's quite predictable.