Yeah. I grabbed all of them now and I'm at the grace before the final boss. Just snagged the last of the armors and weapons I'd missed and killed the furnace golems last night. I think I'm just about 100% on it now. Gonna wipe up the boss tonight and put it aside while I get back to real life for a bit.
Edit: I said "wipe up the boss." That was a mistake, and I understand that now. I apologize for my hubris.
Without any real sense of progression, I just couldn't find a reason to play unless I had a friend who was already online and playing. Unlocking new weapons and whatnot is fun until its not, and when I don't have the minutia that comes with an MMO or the randomness that comes with a rogue-like, I don't have anything to look forward to from the next run. There was no surprise to the game, and the initial luster faded pretty quickly when I realised what the treadmill was going to be. If there had been a more single player focused bit to it, I may have lasted longer, but being so heavily reliant on a party meant it was a group of friends, or some randos that are going to waste my time.