I don't think you ever will. Why? Spreadsheets aren't "creative." They don't cause you to "Think different." They're boring business apps and I don't see Apple creating one.
They're 'building a replacement to AppleWorks. They have to build one. Many designers and consumers need spreadsheets for basic accounting etc. I use a spreadsheet regularly and I'm in a creative field. Apple need to offer its consumers a free basic suite of applications for those who do not need the full office experience. Although I am aware iWork isn't free - it should be though. Well a basic app that's above TextEdit is needed anyway!
Keynote is a solid app so I can understand paying for that but an AppleWorks replacement should be free.