I agree, $200 seemed REALLY high, here is the link to the lamp I am referring to.
starship prices were really low a couple of years ago on ebay ($30-40), but now prices are quite high. i do not consider them to be rare, but many auctions list them as such and carry a $150+ price tag. i wouldn't pay more than $50 for one.
They arnt rair and 200 bucks is a fluke - like any lamp it depends on how old it is (i.e. is it a US made model), overall condition and the globe combo.