Because they are only nice to drive once in a while. They just are not that much fun compared to modern muscle. They suck gas,run hot, big ass holley carbs always need adjusted, bitch to start sometimes hot and cold,they ride and handle like a tank. Can you tell I have owned a few. Now if money is not a concern they can be updated/modded to be a nice driver. The pro touring theme is the way to go $$$$