That's a very interesting question!

It's not just a simple matter of rebuilding as it pulls in libvorbis etc dependencies. That's not too much "bloat" (~1MB) but it does mean we'll have to package & distribute those as well, and be careful to avoid conflicts with extras (at the very least some coordination with Tuomas Kulve would be necessary).

Personally I wouldn't mind at all having Ogg support out of the box (it's one of the first things I install anyway), anyone have any good arguments against it?