No, not really. GPU prices are only high due to mining creating a supply issue. New card architectures are slated for release sometime during the next few months so realistically we are likely to see prices dropping back to somewhat normal before long, hopefully.
Regardless, those older cards are just that, older. They are neither likely to become more relevant because of the issues with supply and demand nor are they capable enough to be worth much for gaming. For mining, who knows, or cares.