Even in the old muscle cars coupes are more desirable now. At least for the next generation of enthusiasts. I'm 38 and novice car collector and have no desire to buy a muscle car in a convertible .I know many feel the same.
I don't see them going for more money now, but maybe some day. If you like the anniversary package and color. Based on mileage and the fact it has a pulley and tune I would say 25 if it's a clean coupe and less if it's a convertible
I looked at the 13-14 shelby. The interiors are the worst thing about the car. Other than that I think the car is awesome. I bought a newer roush Mustang for DD and my cobra stays in the garage. Why are you on this forum if you don't want a terminator?
Both are great mustang's. I see alot more Bosses than terminators. I think the boss sounds better stock, but the supercharger whine and a good exhaust on a cobra is more unique.
I know the anniversary is "special ". I personally don't care for the styling and I have not seen them go for more money, but SB go for more even though it's just a great color