Around here, most country churches and virtually all churches attended primarily by African Americans have B-3's (sometimes the small ones have M 100's) and tube leslies...usually 122's.
And they sound fantastic.
A good friend, Roy Carter, makes his living traveling to churches in the area maintaining Hammonds. He works 6 days a week. Sometimes, when I look at his repair bills on my old M, B's and C, I think I'm supporting him and his family myself!
R.