Slay The Spire has thrown my priorities out of whack

For nearly all of the 237 hours I have spent playing Slay The Spire so far, I have ignored a certain chunk of it. Once you've successfully completed a run as every character, you start finding pieces of a weird triangle. They do not come cheap. Each key requires a sacrifice: you need to pick one up rather than rest and regain health, turn down a tasty relic, and fight an extra-tough boss. I know that these keys open up a secret area that comes after you squish the final boss, but I have never seen it. I doubt I ever will.

I am too busy climbing up stupid meaningless ascension ranks.