I'd like to be able to price products that are buy 1 get 1 half off... or have digital courses in my e-comm shop that are $X price if you buy 1 course, but if you buy 2 courses they are $Y each, or if you buy 3 courses they are $Z each, and so on... or if you buy a course and a SaaS subscription you can get the course for 20% off etc...