I'm out... I'd rather put $ into SS 12" figures if I wanted a scale shift. They're nice, but I'm sticking to my guns and not buying into a collection of these.
Bossk/Tarkin/Fleet Trooper would be the only 3 on my radar, and of those only Bossk is who I'd buy without thinking about it (Bossk's Bungalow). The other 2, unless they're really something special, I wouldn't buy them either.
I've always passed on SS stuff because a scale shift isn't in the cards for me right now. I'm still hashing out how to display my 3.75" figures the way I'm happiest.... A whole new display area with a whole new scale, no way.