> tde-i18n should be around 2-3 hours I think.
 ZOMG. Is it because the repo is so big, bandwidth is so limited or http protocol slows things down  so much?

The repo is quite big, I think the whole tde repo is something around 5.5 GB at the moment.
Download bandwidth is usually around 60-100KB/s, at least here.

Cheers
 Michele