Oh, so you're not tired of
1. Enter portal to other dimension that looks like a red desert"
2. "Find entrance to tower"
3."Kill Deadra inside"
4."Get Demonstone or whatever it is (Been a long time)"
5. Repeat from step 1.
Or the endless temples and ayleid ruins that all look the same?
Or searching for a ****ing vampire cure by collecting garlic, wich the only way to aquire is to talk to shopkeepers, wich the only way to get to is to get outside when it's day, wich eventually burns your skin?
You just completely threw aside the other sidequests, leveling skills, and just playing freeform. I have had several hours of gameplay just looking for cool shit to deck my house (A Wizard's Tower I got from Xbox Live Marketplace) out with, like glass weapons and armor, staffs, and shit.
If you got bored, then you're doing it wrong.