How does Pages compare to traditional desktop publishing solutions? FrameMaker Feature Comparison compares Pages, Word, FrameMaker and InDesign. The PDF is a long and comprehensive report.
I hope the author will update the document for Pages 2.0. I'm still on the fence about committing to Pages. For now OmniOutliner and AppleWorks and Text suffice. Since Pages will install for all users, and Nisus will only work for a single user per machine, Nisus is rather more expensive.
I'd feel better about buying Pages if Apple were more serious about building iWorks -- or if they switched to an OpenDoc file format.