I don't do a whole lot of synth crafting. I do own Komplete 14 collectors edition, which has massive x, as well as some others. 15 is out now. I might upgrade again at 16 or 17, but NI really hasn't added shit worth it in years.

I did find a program that can convert the machine kits to ableton drum kits, which was really awesome. Saves a ton of overhead. Battery (which effectively uses the same kits) is a hog.