My only recommendation to you is get an internet connection.
Honestly I don't see why video game companies can't be nice and supply physical disc copies of DLC...but the sad truth is most DLC is virtua-only nowadays, and this is a growing trend.
Interesting, you say were still living in the stone age if you don't have a good enough internet. But what many don't know is were close to being back there again. The fact is an all digital age is not going to happen because of one issue. Where running out of bandwidth.
http://penny-arcade.com/patv/episode/spectrum-crunch
Now as far as Skyrim DLC and disk... it may happen eventually but probably not on release. Oblivion did it, Fallout 3 did it... but New Vegas only had the GOTY edition. But Skyrim sold a lot more than all of them, so BS would be dumb not to bring the DLC to disk. Contrary to popular belief, console users don't use digial downloading like Steam users. in fact there are over 20 million, yes 20 million consoles that are not even conected to the internet.


