Somehow my other reply got lost.
I could see both of your "full dime" pictures being published (if someone wanted pictures of a common dime); the top 100% crop is certainly usable too. Sometimes collectors want to zero in on a particular feature (like an overdate or a mint mark, especially if the mint mark turns out to have been added on by some fraudster. (There are cases where a mint mark can hugely increase the value of a coin; e.g., any 1909 S cent [there were three different kinds] versus a 1909 cent of the same type is a huge difference, also an 1914 D cent versus a 1914 cent or a 1916 S versus 1916 dime.) With increasing sensor resolution, magnification is becoming less and less necessary (though sometimes it really is needed).
When your full image is three feet across on a computer monitor at 100%, you've got the coin under pretty good magnification from the start.