Really just brainstorming here. I think Drupal would truly benefit from a 'Profiler' module of sorts. We discussed this briefly at one of the sessions at Drupalcon. One of the biggest roadblocks for Drupal development is that, by nature, the codebase is heavily reliant on database configuration. This makes 'development to production' processes cumbersome.
What if there were a module that essentially 'recorded' actions taken upon a database in a development environment, and could then (intelligently) be 'loaded' into the production database (well - stage database first, and then production)?
I can see the potential benefits here, if the module were as robust as I'm thinking.