It would be great of the marketplace offered a sort of expansion module that you can buy, it would incentivize creators to make more content for their packs if it means they can make more money, without losing potential profit from sales already made that now get the update for free, regardless of the work put into it. It would also boost sales when updates do happen because people will have the option to buy them or not, but most people will probably end up buying the pack + new features. Thats just my two sense, but I think everyone on the marketplace would agree to such a feature.
If anyone is interested here is my sales report since April.
