Silveroak is consumed mostly by plywood and paper industry. It is not good furniture for reasons, borer insects reduces life of the furniture and poor workablity of wood for carpenters. Teak has natural insecticide which will last long.
Costwise comparison 1:5
Gestation period for silver oak is 8to 10 years, for teak 15 to 20 years.
Teak needs paperwork to cut trees, silveroak dont need paperwork from forestery(double check with your state forestry)
Teaks gets stolen easily but silveroak dont get stolen.