Blue
Ravenous Bugblatter Beast of Traal
My biggest pet peeve was the "Wealth by Level" concept of 3e and (from what I understand) 4e. Having a prescribed track of what I'm supposed to hand out as a DM grated my nerves, and one of my favorite parts of 5e is the removal of that whole concept.
I'm with you. Not because it can't be handy to have a guide when creating characters above 1st, but because treasure was a stealth part of your character advancement and the math assumed you'd be updating you bonus to attack/damage, saves, AC as well as getting other items to help you be more effective. The difference in effectiveness between a level 15 character and a level 15 character with items was very significant.