Nice scores yourself! How did you get the lone 21B? Did you make an offer for the one that was up on Ebay? I think it was listed at like $200, so hopefully you got it for much less! I don't have the little accessory for mine, so I've been itching to get a new one.
I have a spare Snowtrooper if you want one. $15 shipped if you're in the U.S.
A UK seller had them and I got all 3 for less than $200 I think (not checked £/$ conversion). Also I'm in the UK to answer you question but seriously you would sell a snowtrooper for $15 to a U.S. resident? You did realise I was talking about the 2007 boxset version right? I mean sure he's lost some value but that's cheap!
I also got Ponda Baba a few weeks back and checked off the Holy Grail of all kubs for me personally.
Anyway my personal Holy Grail Kubricks are now
and my Holy Grail Kubricks picked by Indiana Jones are now
My Holy Grail Kubricks picked by Elsa Schneider are now
Luke Stormtrooper (yes yes yes there is the two pack but I still want him)