I am a big fan of pure, sleight-of-hand coin magic. When I started, we didn't have all those fancy gimmicks. We were dealing with (when lucky) a couple of silver half dollars and copper pennies. Maybe an ugly jumbo coin with it, and that was the basic outfit.
Nowadays, the young generation is outfitted with an enormous array of various trick coins and coin sets. The sheers amount of trick coins is amazing.
The problem with this is: if you want to use tricks coins in a proper and deceptive way, you should be able to do some very basic moves with coins. Switches, palms, transfers, and the lot. Ringing in the gimmicks, and getting them out, is very often an important consideration.
The best way to go is through the classic and basic texts of coin magic—before you even consider buying a trick set. Bobo's tome comes to mind, and, of course, the sophisticated work of David Roth. The Spanish school brought some amazing coin men: Gea, Piedrahitas, Rodas, and many more. Look at Slydini's coin work, and Vernon's.
Interesting with these artists: they use sleight-of-hand in combination with gaffed coins. Every magician should have a basic repertoire of some good sleight-of-hand with coins. Some of the trick coin Gods can't even perform a simple coin vanish properly!
Sadly, that's how this kind of coin magic looks: gaffed and tricky. No real art, no craft and no ability. Except for demonstrating the newest precision-made gimmick. There are exceptions, of course.
Coin magic on its way to what I would compare to cyborg-magic. Part of the blame on the dealers and manufacturers. All the focus on what is new and what sells. A pity for pure sleight-of-hand coin magic.