So, out of 7 loot spots, only 2 might spawn. If this applies to all dungeons, a party could clear an entire high-level dungeon, and only find a very sad amount of loot which won't remotely outweigh spending on supplies and equipment to complete the dungeon, leaving a group of 5 with a miserable share of 200 GP each. Notwithstanding, the majority of low level characters have a hell of a time scraping together 200 coins at all.
It might mean interesting things for the player economy, but I'm wondering if it's a bit imbalanced now. Thoughts?