are 727s worth anything ?

for those who dont know me, im known as Ms. 4 speed, because almost everything i have is four speed.....Well over the years of parting cars and swapping this here for that and so on.......i have a pretty big pile 727s most came out of running cars, most are big block, although there are a lot of small block ones rangeing from 1967 to 79....they are all 727s because i got rid of all the 904 a few years ago. so my main point is: are these units worth anything to anyone? and if they are whats the average