The problem is that A-coins are like... pretty importaint?
Of there are critical rewards for these events, why would you NOT take part in them?
300,000 credits is not a non-trivial amount of cash to afford them.
Frankly, the fact that the Racks ALSO went on sale for $10's is outright insidious.
Even more insidious are the events that REQUIRE you to upgrade/rank items,
Like in the last Red Key events, what happens to the late game players who's weapons and mechs are SO expensive to upgrade and rank, that the event litearlly becomes impossible to complete without spending real money on the game?
Mecha arena hard locks the amount of credits and crates you can earn per day,
By my estimates, its somewhere along the lines of... at most, without events active, 60k-70k before the game artificailly stops you from earning more credits. where INDIVIDUAL SINGLE POINT UPGRADES, can cost well over 100,000 credits. not facting in the face that Rankup's also cost THOUSANDS of A-coins, negating the value of the event entierly.
And in the case of the disk launcher events, you either got (worthless) skins,
or, Equally worthless sums of credits. Because the disk launchers were entirely Lootbox based.
The person with the WORST luck on earth, would be looking at spending well over $120 trying to unlock them.
Ultimatly,
The pricipal behind the events, and the sales, are utterly corrupt.
Create a fake sense of urgency by offering time senstive prizes, but then also sell the way to win those prizes.
It was never about rewarding the player base, its just there to milk them for a little extra cash.