I am of a similar mindset. I can still figure out the items that are best, if something that is worse than BiS gets a titanforge I can figure that out IF I get the BiS, but that tends to take a while. At least in this scenario I have something to ponder over and (potentially) a decent item.
As has been mentioned, it also means there continues to be a chance at things while I keep playing. If I cap everything in a few weeks I feel like I might get bored easier or the flip side is that I never see the item I want drop and never have anything for the slot.