I completely agree.
I started over not too long ago with a Breton mage girl. For some reason, although I installed the Dawnguard, Hearth Fire, and Dragonborn expansions, I never got to play them, because there's just too much other stuff to do... I'm always like, "Nah, I'll finish this quest line first before I start with (insert expansion quest line here)", and then end up starting at least one new quest line that I want to finish first, haha. So I still have plenty of unfinished business in Skyrim...
Can't wait for the Elder Scrolls Online either; hubby signed up for the BETA today, I'm thinking about doing the same.