You are still more likely to win the Super Bowl than actually getting the trifecta ring. Your time is much better spend hunting Reforge materials.
Exactly, but spending them on weapons, rings or amulets is pretty much throwing them away for materials you could have gotten at a much faster rate. So in that comparison, you are better off not running GRs or just not using the Blood Shards, as the time you end up taking to spend them, could have been spent better. So it would be more profitable to leave Blood Shards rather than spending them on weapons, rings or amulets