Hello Axxi
The systems in the different packs are similar in the design but explicitly not the same.What of course, you can not know since only one of them is right now on the marketplace. Every pack is optimized regarding features and performance and altered for the use case. Like for example the Island system has an animated coastline effect in it that works in combination with a special water surfaces blueprint and materiel to make coastline wave effects. It also has different base textures than the Alpine set and comes with new special crafted island landscapes height maps to import as well as plants and rocks and out of the box Levels to use so it is definitely worth buying for users that don’t what to do all of that them self. No one forces anyone to buy anything and can build all things them self if they like to. I am always putting additional things in the sets and improving them and if fixes or improvements make sens for older sets I also do an update to them.
You seam to like “arguing” about this, However I don’t see any point in explaining more that I just did in this context.