I am actually experiencing the same problem.
I do not feel completely entertained. Sure it was fun for two days, but then I kinda got tired of it. The only thing that keeps me entertained, are the class stories, but I need to get higher levels to experience those, which means I have to go through a ton of other quests with not as interesting stories.
I like the flashpoints, but the community as a whole is just too slow about it. I don't mind having them listen to conversations, peace with that. But seriously, finding their way to the flashpoint, taking 10-20 minutes before they can meet up at the flashpoint, not knowing where the hell to go within the flashpoint. And the boss fights. They are challenging, but not something hardcore, seriously it cannot be hard to figure out, that you do not stand in the enemies AoE cast, it is obiviously something very dangerous, check your health.
The two first days I was excited, I gathering four men for every flashpoint I did, for every group quest, even those that only required 2, just because I loved it. I slowly noticed that more and more slow thinkin people got in, and I started to get annoyed, it was painful and it shreds me inside, but I held the posture and hushed at them in a friendly tone of course
But I will not blame the game at all. The game itself is outstanding, the questing ARE linear, there is no run around this, but that is not a bad thing, most games have it one way or another "You gotta be between this and this level to quest here, you can still travel here, but we do recommend you not to before reaching these levels"
Anyway, I may just be tired of gaming as a whole, there is a time where we all may have to admit this fact. Games doesn't keep me entertained, and I am easier annoyed by communities in MMORPG's. Yup, I gotta be a "retiring" gamer.