You are talking about two different versions of "AppleWorks."
http://en.wikipedia.org/wiki/AppleWorks
AW files weren't compatible with anything in the business world.
AppleWorks Word Processing files are compatible with Word (and can even be saved as Word files).
I use the Draw and Paint modules extensively (Pages is no substitute), and I have some databases that won't convert to anything else.
I need the reporting capabilities of Quicken. These capabilities are not available in Quicken Essentials for Mac (which is an Intel app). Unless/until reporting capabilities appear, I can't upgrade(?) to Quicken Essentials (and Lion). I've been doing our complicated income taxes with Quicken since 1994. How anxious do you suppose I am to try to find something that works as well? There are at least a dozen financial software packages for evaluation. How anxious do you suppose I am to wade into those waters to find something suitable to our situation and learn what I'm doing in them in order to evaluate their suitability, when Quicken "just works"?
As far as solitaire, the solitaire game I like (Eight Off) is not easily dealt out with a deck of cards(!), but I'm absolutely open to suggestions for other solitaire applications. If you've ever played Eric's Ultimate, though, you will know that it comes with an attitude not likely to be shared with other solitaire applications.
An example of the multiple pieces of advice you receive at the end of each game:
Don't just do something — stand there.
I've thought this through quite extensively, as you can tell. It's why I bought my MacBook Pro when I did -- to have the latest, greatest that would still run the applications I need (and want) to run.