Long post sorry
I think the way we should look at this is that raiding/farming tomes is a extra thing to do in ff14 just like sight seeing, hunt logs, crafting etc.
So to say you get burned out doing the same thing is accurate if your constantly running the same raid.
I think the situation is the following ... And correct me if I'm wrong. If we look at ff14 there is a multitude of things to do just as it was said earlier . To some it is of interest to some it is not.
Perhaps there is some type of content that can appeal to players that want something akin to ff11. Albeit... A piece of content that captures the essence of a strong point of 11 and deliver on that.
If we can figure what this is and incorporate into 14 then everyone happy I'd imagine.