You don’t save money by passing up the dot 5 updates, it is just rolled into the the next higher version update.
You would have paid $400 had you bought the Cubase 6 and Cubase 7.5 when they each came out, so you get $100 for not having bought 6.
Very pittoresque final paragraph, you should apply to work at Yamaha marketing. I found
pull their heads our of their corporate lobotomy city @$$es and come up w/ a bungled [sic] package deal
especially pithy. 