Currently the boxes that worth investing are Blazing Rose (Metaphys, Vermillion Dragon Mech), Dark Dimension (Invoked & Gravekeeper, Quintet Magician), Future Horizon (Cyber Dragon, Dark Magical Circle), Judgment Force (Lunalight, Blue-Eyes Synchro), Guardians of Rock (Electromagnet, Eatos, Magician Navigation), Soul of Ressurection (Shiranui)
If it's competitive enough for the meta, then it's part of the meta lol
I won't deny that those boxes are the best right now, but Fortress of Gears isn't that bad either considering how much it elevates Aromage, which also happens to be a deck far more "F2P" than the decks whose cards are box exclusive.
Your logic is terrible, you're basically saying that Konami should never sell new cards to get profit. No one would bother buying new stuff if the 2 years old stuff still works, and without profit the game is dead.