E X A C T L Y !!!
People agreed full price and bought the product. But discount is for those who has not bought Cubase or upgraded license until that day when discount appears. Another situation could be when new version come out.
When the first wave of discounts came for those who buy completely new Cubase, I thought - okay, not for me. Because I worked on Pro 9.5 and felt happy. But when they offered update/upgrade discount of 50%, then all walls fell and I bought it.