Steinberg's argument is that the upgrade from C5 to C6 was £50 cheaper than normal so this charge leaves you no worse off. Frankly the new comping is so good, I would have paid for that alone. I also love Amp Rack so updating that was good news for me too. Audio quantising seems to do what it says on the box and that I'm grateful for. The synths I can't get so excited about as I've just purchased Zebra 2 and there's nothing in my world to match that. The filter and EQ will be fun too but not a game changer. So, I'm fifty bucks lighter but much happier.