Like Pete said, making a full expansion takes too much time and you're better off releasing DLCs while the game is still played by a maximum of people. Also, a steady flow of DLC releases make gamers keep their game instead of trading it, which means less people will be able to buy a pre-owned copy.
No elder scrolls fan would ever trade a TES game. You trade in crappy sports games, not a TES game. :toughninja:
Any DLC is fine by me. Just because it's BIGGER doesn't mean it's BETTER. What a concept.
Not indefinitely.. but most of the time bigger does = better when it comes to addons for TES.
I wouldn't mind so much as long as they have them out quickly, and they are roughly equal in size to point lookout.