I’m not sure if this is a bug or intended, but when I purchased my first renown item from Silvermoon Court, the price has since drastically changed. The helmet (Silvermoon Armory 1) initially cost 750 Voidlight Marl. When I went back later (and looked at the Haranir belt from rewnown), both items were 25 Voidlight Marl.
This seems like a massive change. I understand that in the grand scheme of things, or over time, I will collect a lot more of the currency, this does not seem intended or discussed anywhere that I’ve searched.