Worth Selling 7970 matrix platinum for gtx970

MMM..so i feel im about to jump onto the green teams gtx 970. Would you guys hold on to a 7970 Matrix Platinum or jump? The quietness and low wattage appeals big time. If i was to get rid of the 7970, what would you think is an acceptable price to sell for? It's just under a year old, (and i haven't even overclocked it..shock!)

Cheers in advance guys

DM

yes, and no; i'd go for 780ti