Re-ripping my entire CD collection to use Ogg Vorbis instead is GOOD.
Finding out after being 1/2 way done that iTunes is now available for PC, but only supports MP3 and AAC, and my entire collection is now in OGG is BAD.
Oh, well. Looks like Winamp for me for a bit longer. Besides, iTunes' biggest advantage would be if I actually got an iPod, and I would want OGG support on it before I spent my money.