I think the 1/5 Gold rate for magic items works well in their default "points of light" setting.
In such a setting, trade is very dangerous because of the constants dangers away from civilization. But that trade is very lucrative, considering I'm basically getting 5 times my investment when I sell a magic item. In a way, it turns traveling merchants into their own kind of adventurers. Instead of killing monsters, they brave the road of commerce.
In fact, I bet that would make an excellent campaign idea
				
			In such a setting, trade is very dangerous because of the constants dangers away from civilization. But that trade is very lucrative, considering I'm basically getting 5 times my investment when I sell a magic item. In a way, it turns traveling merchants into their own kind of adventurers. Instead of killing monsters, they brave the road of commerce.
In fact, I bet that would make an excellent campaign idea

 
				 (I have never done this myself, least face the wrath of my group).
 (I have never done this myself, least face the wrath of my group).
		 
 
		 
 
		 
  
 
		 
 
		 
 
		 
 
		 
 
		 
 
		