I've got in the neighborhood of 40.
40 of them? You sick ba$tard don't you know when enough is enough...
Just kidding, I bet they look awesome set up in your diorama.
I've accumulated most of these at TRU stores, and found several at a Walmart a while back for $2 each on clearance. I also found several at a collector show for $2 each loose. They really weren't all that rare in the St. Louis area, or I got very lucky in finding them.
If I see any more, I would only pick them up if there was someone I knew that needed some.
As for the Clone 3-pk versions, well I am sure when it is all said and done, I will get around 12-15 or so of the 3-pks, which will give me 35-45 more Clone Troopers. Cound the 7 or 8 red Clones, 7-8 pilot Clones, and the extra ones I plan on getting from the special 2-pks, and I am sure I will have well over a 100 of them come Christmas time... GO CLONE WARS!!!