I'm stumped on this one: My client has 3 unrelated events on different dates, with a price for each. They want to allow users to sign up for any of the three individually, nothing weird there -- but they also want to offer all 3 at once for a special discounted rate.
Event A in March: $50 Event B in April: $50 Event C in June: $50 OR Sign up for all 3 right now and save $40
Of course you could do that and get the discount applied. The only problem is someone could select it but not actually sign up for all 3 events. So you CAN get the discount in there... just not in a way that is automated and completely foolproof