[luriel]

> There were several high quality promotional videos when it was first released.

There was video of a talk given by Rob, and a short video intro by Russ Cox. That was pretty much it.

> it has a ton of documentation, including translations for several languages.

The documentation is a fundamental part of the language, mostly the spec and godocs. The translations are all contributed by volunteers.

> And all those appearances at tech conferences take time & money

Most conferences actually cover expenses for speakers, and there have been just a handful of talks given by Google folks about Go.