I started using Google Docs and I like it a lot for simple documents and spreadsheets I collaborate on. I still use Word/PowerPoint/Excel for the heavy lifting. I'm using Outlook with Exchange Online for email and I'm happy with it.
Now my question is: will I get more out of Google Docs if I pay for Google Apps? I have a small team so the price doesn't bother me, but since I'm not interested in Google Sites, Calendar or Mail, I wonder what benefit is there for the Google Docs user like me.