....ah, maybe next year it'll be a platinum card !!
Have one myself, just think it proves you've been recognised as having trained on the relevant a/c type with FlightSafety - as for the gold, silver issue, refers maybe to the level of proficiency they believe you achieved during the exercises......might explain why mine was handwritten on the back of a piece of toilet paper
Of course, if i was cynical, i could say it might be a "feel good" tool to make you come back next time.....but i'm not cynical me, never, ever
F/O