Our goal all along has been to make the site as intuitive and easy to use as possible so that users can create events without being slowed down by a multitude of features. We agree that there are a lot of little features that people would like, but if we added all of them, the usability of the interface would definitely diminish...something we've been working hard against.

In that regard, we've taken a page from 37signals' book "Getting Real":

"The best software has a vision. The best software takes sides. When someone uses software, they're not just looking for features, they're looking for an approach. They're looking for a vision. Decide what your vision is and run with it."

Hope that kind of explains where we're coming from and why we haven't given creator's the choice of response types.