Pretty much this.
I have no delusions that LFR raids are far from the "real" thing, but I find it odd that while I can understand that, others seem completely incapable of understanding how more difficult fights does not mean experiencing more?
Just because a fights harder, doesn't mean I've seen less of the game lore or content? I suppose technically I have, since I've not seen fight mechanics you have, and that's certainly part of the game.
But does Garrosh, or any other boss say something different on LFR versus other modes? Are any of the cut scenes different?
If not, then LFR is perfect for exactly what I wanted to do. See the raid, see the cutscenes, and move on. Now having scene that, and gotten a few gear upgrades, my want for better gear, and to beat out others in HPS or DPS, is what's driving me now, but originally LFR was perfect for what I wanted.
Edit for Typos