I had Real for a small while. I hated it. Windows is so much better.
I remember uninstalling a few times too. Then after a while, I'd need it to view some video clip that didn't support WMP, so I'd go and install it again. Needless to say, I was quickly reminded why I hated it so much...
I generally avoid Microsoft programs whenever possible, so it definitely says something when RealPlayer is actually worse than the Windows counterpart in my mind.
And this is going somewhat off topic, but speaking of annoying software companies, Adobe is near the top of my list. How they managed to load so much bloat into Adobe Reader 6 that it now loads 10x slower than the previous version is beyond me.