You're not the only one...trust me. I find myself getting bored quite often, and it can be disappointing because I do enjoy challenges, but I just get a little burnt out from the same old stuff week after week. I definitely see myself taking a break sometime soon, probably by the time 2.3 rolls around after its hype and launch, but I would enjoy a little bit more variety in content to add that special something that would get me back into it more. Coil is fun, but sometimes I feel like I'm just being used to help others get loot while I fall behind and it ends up feeling like a chore more than fun...
I hope they add a new kind of raid besides Bahamut's Coil in the future that changes things up a little...something on a grander scale (that isn't a train wreck like CT can be) would be pretty insane imho.