In retrospect, I think I enjoyed the "making of" parts more than I did the added scenes to the movies themselves in the extended editions. Seeing how the movies were made, how the costumes, sets, and so forth were created, some of the things they thought about doing but didn't, fascinated me. Buying the extended editions so I could watch those particular disks was well worth the price. The added scenes not so much. If it was up to me now, I would want something even shorter than the theatrical editions, realizing that scenes I would have especially liked to see added were probably never filmed anyway (so are not really within the realm of possibility for these movies) while a lot of the scenes that were added in the extended editions were just more of the same sort of thing I could have done without in the theatrical versions (scenes made-up by the scriptwriters out of their own imaginations, rather than parts of the story that Tolkien wrote).
There were parts of all three films I thought were beautiful, heart-breaking, inspiring, moving etc. but the definitive version of The Lord of the Rings has, in my opinion, yet to be filmed, and unless somebody gets on it pretty darn soon, will almost certainly NOT appear in my lifetime.
I will also say that after the self-indulgent mess Jackson made of The Hobbit, though I loved the first three movies profoundly at one time, I can now see their flaws more clearly than I was willing to do before. Or perhaps I should say that I am less willing to excuse and justify those flaws than I was while still under the spell of the parts that moved and enchanted me.