If you want to be BiS with 0 effort, then almost every single game will be P2W. If you want to be able to play at your own pace and be relevant to the content you are intending to do, then you don't need to spend money at all.
Is Tera Worth Playing 2021?
They needed only to take a look at Eve Online, or any other ancient game that manages to still remain relevant because its developers keep working on it and improving it. So is Tera Online worth playing in 2021? Right now, the answer is no.
Is Tera dead?
TERA is dying and it seems like all Gameforge and Bluehole wants is the money when they can't make the money due to the fact there's not enough players and no one is willing to spend the money until it's gonna be put to actually good use. We appreciate the small events, but that's just not gonna cut it.