iWork 06 for cheap, or upgrade to iWork 08 (more expensive)?

Hi everyone-

I'm definitely considering getting an iWork package, but I'm unsure which one to get. I know iWork 06 can be found online for less than 30 bucks, and iWork 08 is 80.

People may say that Numbers is the reason to upgrade, but I would never use that-I'm fine with Excel.

To sum it up, are the improvements in iWork 08 really worth spending 50 more bucks for?

What would you do?

First off Numbers is not part of iWork 06. Second, Pages has several new features, making it more of a word processor than before. Get iWork 08.