As an Ace Combat fan, don't buy anything other than the base game.

• They're playing Edition Roulette with a bunch of different bundles hoping to confuse consumers.
• They're including a mouse pad in some of the bundles. A mouse pad... for a flight simulator.
• The soundtrack on vinyl is great if you're a vinyl collector, but there will almost certainly be other ways to buy the OST after launch, and without all the other preorder gimmicks.
• Multiplayer bonuses for pre-ordering are literally paying for power. Don't support Namco's endeavor to turn this game into another toxic competitive online game.

The only pre-order benefit that I think is remotely worth it is Ace Combat Zero on PC. But there's huge caveats for that too.

• If you have a PC capable of running AC8, it is more than capable of playing AC0 on emulator.
• it's a straight port of the game from the PS2, so no new high definition assets, but...
• The Pixy cutscene looks like a bad AI upscale job. Look at his chin stubble in the trailer and you'll see what I mean, it looks like broken glass.

I'm excited for the game too, but I have reasons to be cautious.