Depends. the smaller alligators net a lower price per foot. here are a few kinks to the various prices: LINK
"By Season 3 of Swamp People, which was filmed during the 2011 alligator season, the prices had gone way up, and we reported on them in a lot more detail. 7ft gators still brought in $14/ft at market, but 8 ft. gators sold for $22/ft, and those over 9 feet went for $26/ft. "
I'm thinking that the price here locally where we sold ours are higher, The larger ones are going for well over $30 per foot (length). Super large one can get about $34 or 40. It also depends on the quality of the gator, any damage to his hide, etc.
So our gator which was longer than 12 and a half and the guys received earned us about500 plus bonus for the great shape the gator and his hide was in,