Rob, for your sanity you might want to just pick a few combos you like and go with that.
You're totally right, but my whole collection is based around having every decently obvious variant. So color and paint changes... kit-bashes... I don't really want Hasbro to break that.
That said, the 18 from last round were definitely about my limit. If this is similar or fewer, I'll probably go for it. If they start having 30, 40, more variants, I'll sell a bunch of the Vaders and just pick up a few of these and that'll be that.