is microsoft office needed with iwork?

[LiberatorSiegeTankLurker]

does office do anything extra for typical non-professional usage that iwork doesn't?

 

[Fishrrman]

If you prefer iWork to Office for you own use, but occasionally must either read or send to others docs created in Office, you might be able to get away with "LibreOffice" instead.

Just something handy to have around if you need it.
And the price is right.

 

[Gregg2]

...or the Suite from SoftMaker