[markem]

Probably the San Cristobal El Principe, at just over $4 per stick.

Some others that are good in this price range are:
Fonseca Delicias, Fonseca KDT Cadetes < $3 per stick
H.Upmann Coronas Junior, H.Upmann Epicures, H.Upmann Majestic, Hoyo Palmas Extra < $4 per stick
Much of the Jose La Piedra Cremas line < $3 per stick
La Flor De Cano Selectos < $3 per stick (excellent!)
Partagas Aristocrats, Partagas Mille Fleurs, Partagas Petit Coronas Especiales < $4 per stick (all excellent!)
Por Larranaga Panetelas < $3 per stick (one of my top cigars now regardless of price)
Romeo y Julieta Coronitas en Cedro < $4 per stick (a good stick, some would say excellent)
Romeo y Julieta Mille Fleurs < $4 per stick (I think that the recent production are off, but others don't)

There are more CCs, but these are the ones that I've smoked in the past couple of years (current pricing tho)