DLC vs. Expansions

This is an interesting topic that I have debated frequently over friends with. With the rise of DLC seemingly engulfing the online-gaming market, should there really be any attention paid to expansions anymore? BioWare definitely had some balls going after the expansion market, especially in this generation of videogames, but what do you think? 
Honestly, I think that there is room for expansions, but  DLC seems the way to go for the future. Expansions used to be the way that videogame developers would extend the life and variety of certain games, because in the disk age that was the only way they could. But now developers, thanks to the digital age, can do this in small, bite-sized chunks. It's definitely easier to keep people attached to a game by putting out regular 5-10 dollar DLC packs rather than putting out a large, expensive expansion. What's your opinion?
 
EDIT: Just another food-for-thought, what's your opinion on episodic gaming?

I'm fully expecting that the idea of expansions will vanish, and that development will be focused on instead releasing the same level of content as DLC more often. I.E. it will be front loaded into the development cycle, and the development process will be more refined and cheaper as it becomes more commonplace, etc.
 
Just like how it used to be common to sell 25+ hours of game in a $50 package. Then it became 25 hours and a $25 expansion. Etc.

DLCs and Expansions both have reasons of their existence.
 DLCs to me should be relatively smaller, and they're supposed to be smaller add-ons.
Expansions are larger in scale, and are non-sequels which run on the same engine but has a lot more to offer. (Episodes from Liberty City should have fallen into this category, somehow it was released as a DLC)
 
Thing are so confusing nowardays....
 
But then, both are here to squeeze money out of us. Let's face it, $3 for a map in MW2? 
In addition, how the game developers approach DLCs nowadays is to include some locked stuff on the gaming disc, and unlock it by purchasing the "DLC" (Bioshock 2, Resident Evil 5).

See those specs in the distance? Those are expansions, and I'm waving at them. Bye-bye expansions! Bye-bye! All expansions will just be DLC now, I guess like GTA4 and Borderlands.

I sell most of my games when I'm done with them, expansions are great cause I can sell them too, but DLC I am stuck with. As such I'm really reluctant to get any DLC other than GH/RB music.

I personally favor expansions due to my roots in PC gaming but i see DLC as the future.

" I sell most of my games when I'm done with them, expansions are great cause I can sell them too, but DLC I am stuck with."

" @jonnyboy said:

" I sell most of my games when I'm done with them, expansions are great cause I can sell them too, but DLC I am stuck with."

Digressing here, but I also used to frequently trade in my games - I stopped doing that a few months back, realizing how much I missed LittleBigPlanet and Skate 2 made me want to stop doing that. I still look over at my huge stack of old PC games that I never gave away, and thought it would be great to have a "nostalgia-ready" box full of all the games I've ever owned. "

expansions are better than DLC. there should be more expansions than DLC. i find that expensaions add more replay value compared to DLC. i usually don't donwload anything because it only gives me like a few hours more of a game.