406 MHz EPIRBs rock. The coast guard will contact you within minutes if yours activates (if they can). Accuracy of homing signal (121MHZ) is not great but the 406 signal has your position embedded when linked to a gps receiver or an internal GPS. Negative response starts the rescue process immediately. No worrys about subscription costs or whether the government will still be around next year. EPIRBS get my vote!