Not too sure if this will be helpful or not, but I thought it owuld be an interesting thing to keep track of.  Feel free to join me with this.  As of today March 24th, I'm almost at 0, thats right ZERO A-coins (I just upgraded my Shadow to 4 star.  I will plan on coming back to this post within every week to post where I'm at with my A-coins.  I would consider myself a very active player, consistantly trying to place in the top 5 for the daily tournaments and I complete every challenge (with the exception of the development derby because asking to send referral links or upgrade so much stuff is unreasonable when you get out of the beginning phases of the game.  

So, again as of 3/24/2021 I have under 100 A-coins. 

 Hope to see where everyone elses A-coin accumulation is at.  Cheers fellow pilots, see you in the areana.