Gary,
The reason for the 5th New York is that is is probably the most well known zouave unit from the war. Which I am sure you will agree with your vast Civil War knowledge.
The main reason I got into this business is because there seamed to be a lack of figures, units, and poses on the market that I wanted to paint. That is the main reason for choosing the subjects I do for production. I also try to produce figures to be used in dioramas or vignette as opposed to "static" type figures. I have been working on a large scale 5th NY diorama (40-50 figures) in which the two I have released will come in handy for.
That being said, I do have plans on doing various other zouave units as I too have a fondness for them. I have a 146th New York zouave almost ready for release also. Are you offering to sculpt one for me?
I am not in this business to get rich (believe me!) but Matt is right, they do sell!