In my opinion, the iWorks suite was never meant to be a replacement for either a database nor a spread sheet. Nor even a word processor, for that matter. It is a "presentation" suite. It can now be used to display many Excel spreadsheets. But I would very much doubt many will want to do that. When making a presentation, one wants to keep things focused on the import details, not by highlighting a few cells out of several hundred.
Likewise, a database should be much more than a collection of data. Unless it can be displayed in a usable ways, it's just a collection of numbers, text, images, tunes, etc. Some people even use Excel to create databases!
But I can't imagine anyone making one easy to use, especially where it may be used by someone with absolutely no understanding about what a DB/spreadsheet really is. Any decent DB will produce some kind of report ( if not hundreds of them ). But it may be much better to use Keynote/Pages to display the information in a much more readable and effective way than a three page black and white text document.
I'm not an apologist for iWorks, I just wish people would see the suite for what they are instead of comparing them to what they are not. If you need a database, FileMaker is the easiest to use, easiest to modify and nicest to 'play with' of any I've seen. But there are several others if you have the time/personnel to use them. If you need a 50 by 50 cell (or even 10 by 20) spreadsheet, I would never suggest doing it in Numbers.
And for 80 bucks, what do you want! Some shareware is more than that!