I also wonder if the better-looking assets are going to create a Twitter Bootstrap effect, where we see so many sites using the same UI packages, icons, etc. that it becomes sort of a joke and pushes people away from using the site to avoid the potential to look like other sites. Do you plan on implementing a TemplateMonster-like approach where you can pay a premium for exclusive rights to a design to ensure there won't be clones?
And there will always be people looking for design shortcuts. Much of the web is not breakthrough design of new experiences, it's new faces on existing ideas. I hope we provide a short-cut for designers to get the template easily so they can spend their creative energies making it really unique.
And we already have 75k people on our early access list... so that long ways isn't all that long. ;)