The Upgrades from the Horizon Series to the Vienna Instruments are only available if they are to the benefit of the user.
If you own Chamber Strings of the Horizon Series, you will have to pay the full price of the standard collection, but to extend your content you already have with your sample library you should upgrade to the standard AND the extended content. The extended content will cost you EUR 30 only. So why bother purchasing the standard content only?
So everybody pays the standard library, but Upgraders get amazing prices for the extended content.
If you own Chamber Strings of the Horizon Series, you will have to pay the full price of the standard collection, but to extend your content you already have with your sample library you should upgrade to the standard AND the extended content. The extended content will cost you EUR 30 only. So why bother purchasing the standard content only?
So everybody pays the standard library, but Upgraders get amazing prices for the extended content.