...that's not in lotro. (Yes I'm trying out lotro again while waiting on warhammer - never thought I'd say that).
What I miss from WoW that Lord of the Rings Online doesn't have is all the stuff outside of the game. Maybe I haven't looked hard enough yet, but I don't remember having to look very hard when it came to WoW.
1) Mods and Addons - many agree mods and addons are a mini game in itself. WoW's ui isn't horrible, but getting to change it around and make it something more useful or simply look different, customize it just to your liking is fun.
So many times I found something in the game not exactly how I'd like it only to find an addon that took care of it easily.
In PvMP raid settings I miss things like Grid for the same reason I liked using it in WoW. A way to see a lot in smaller screen real estate.
2) Thottbot, wowhead - how many times have I wanted somethng simply because I read that what others had said about it. I didn't even have a rogue and thought getting a barman shanker would be cool. It was a way to look forward to things you could get - like window shopping!
Yes, I have imagined how much longer it would take for me to play wow if I couldn't look up the quests on thott. But now I don't feel like I'm "exploring" while running around in circles for a quest item, instead I feel like I'm wasting time I no longer and willing to waste. I also miss some of the funny comments people make. In lotro its like rock is at 15.5x, 40.68y zzzzzzzz.
3) Forums - for as much of a cess pool people say wow forums are, lotro forums are not only tame but boring in comparison.
4) Celebrities - Leeroy Jenkins became well enough known outside of the game that it was a Jeopardy question (okay college Jeopardy but still). You'll never see Mr. T advertising for lotro, but what about Sir Ian McKellen? Okay Billy Boyd then if he's too busy. My point WoW has reached beyond the game itself and that makes it even more fun.
Maybe games were never meant to be so all encompassing, but that's the path WoW has lead us down and I kind of expect it now with other games. I hope Warhammer has some of the things I mentioned here it just adds to the enjoyment.
4 days ago