But the DVDs are once a year.. I find it hard to believe that if you cared about the most up-to-date LaTeX distribution you would update once a year via DVD.
I'm sorry? Tex Live, MacTeX, and MikTeX all have a utility that you use to make updates online. Something like this, for TeX Live.
tlmgr update --all
As for the CD distribution, which sometimes people point to as showing that TeX is somehow 90's-ish, I'll just say that the world is full of all kinds of people in all kinds of circumstances. People want them, so the developers provide them.
