Thanks Kurt, I might have lazily clicked on the first "Reply" above, but I meant it as a general continuation of the conversation.
Back on the topic, we have used both versions extensively and find more fault with '08 than '11. Someone might invest in an old clearance copy of '08 and that might offer up more negatives down the road about compatibility and the like.
The Mac MS-Office Team have said that the '11 release addressed many of the issues that '08 had and our experience seems to confirm those claims. If they hadn't said that we would not have bought any copies.
'08 had a compatibility issue with .docx due to a law suite MS lost a few years back, and we had poor experience opening and editing .docx files used with government agencies, nothing like that with '11 (so far).
We thought and still hope that the word-processing community migration will move in the direction of open-source. Nothing against MS Office, it is one of their biggest products, BUT government and schools spend way too much on that when there are high quality, lower cost, or free solutions available. I use OO, Pages, and MS-Office '11, in that order.
In conclusion, '08 has wasted a lot of my support time is all. I'll look at some of the other open-source products that Cappy suggested when I get the time.