eventually, and then the 10 series will do the same to the 9 series, rinse and repeat. basically as long as its one of the fastest cards the gts will be expensive, when it becomes obsolete (relatively) its price will drop.
from the question i assume you are looking to upgrade, if you want to only spend $100 then i'd say your best bet is an OCed 7600 GT, lotsa bang for your buck, i can run FEAR with pretty high settings with just one of them.
but really, what are you looking for?