Good question-
You don't know, what you don't know. I like sorting through the images in Lightroom, for those to develop further.
(from my trials with it). I have liked being able to quickly crop and "loupe" them also. Quick, ez adjustments are good there to.
I think LR is a good solution for keeping track of various catologs, or sets of images, on a long term high volume basis. It also seems like a good solution for ez web publishing, to my Smugmug sight, but that is the question? Is it better than Bridge? Worth the money? Or just another toy?
For down to the pixel adjustment, Photoshop is definitly the bomb. Could not go without. LR, I like, but almost a duplicate to Bridge, with different templates.....????/