In Catalog, I haven't seen the ability to create a date/time-based pricing structure, specifically, early-bird pricing. Is there any plan to add this as a feature?  I thought I would just create 2 listings for the same course with the different prices and use the Start/End dates for the listings to control the early-bird cutoff.  Of course, it looks like you can only list a course once, so that was not feasible. A Promotion Code could work, but there are headaches associated with those who just don't use the code, and then staff having to "fix" things through the payment backend.