I think people are assuming that my original shot was that d20 is bad or something because it's complex and complex games take forever to prep for. I highlighted Spycraft 2.0 as an example of what a good game design could look like for several reasons
1. it's a d20 game
2. it's a complex game with lots of options (feats, Prcs, gear, etc, etc) for players and DMs alike. Plus there are new books that have been released and that are going to be released that offer more options.
3. despite the complexity of Spycraft 2.0 it has a system built in that allows for very fast prep time. As mentioned above I can stat out NPCs, security systems, organizations, etc in about am hour's time regardless of of the level of the adventure. The NPC design system is so elegant that once I've stated out a NPC (say for a 4th level adventure) I don't have to do any more work on him if he returns later in the campaign (say at 8th level).
Conclusion: It's a myth that complex games take a long time to prep for. It's also a myth that you need to a rules lite games to have fast prep times. Spycraft 2.0 (and to a lesser extent Iron Heroes) has proved this fact.
So, since in this case you CAN have your cake and eat it too, why havn't more game designers taken this stance?