Make The Game Predictable

It’s how these games work. There is no benefit to the publisher in allowing high value packs to be always available as this will not generate FOMO to buy said packs.

It’s simple old fashioned supply and demand, and I would respectfully suggest if you don’t understand this that you should not be spending  or be prepared to spend money on these kind of games as you are the kind of player that predatory mechanics  prey upon.