In my experience, I have never seen an elder in the congregations that I was associated with bring (or have for that matter) a bible study to the Kingdom Hall.
Now I think that I already know the reason for that, but it seems that the majority of the Bible studies are done by the poor sister pioneers.
Is this the case in the Hall you went to?
Slipnslidemaster: Doin' the humpty hump...just doin' the humpty hump...