Amon

Amon is, technically, a merchant, even though he rarely ever actually sells anything. He's just much more interested in spending money than he is in earning it.

He's a collector of pretty much anything that he thinks looks nice, and when he wants something he usually doesn't rest until he holds it in his claws. Since he's constantly flying all over Sornieth in search of new things either for himself or to sell, he has little time for other hobbies.

In typical dragon fashion, he hoards all his stuff in a secret cave that only he knows the location of, and he's very suspicious towards anyone who he thinks might want to steal his belongings. Amon is an ambitious dragon, constantly expanding his collections and finding rarer things that he can somehow acquire. His treasure and trinkets fill him with a great sense of pride and accomplishment.

He is good friends with Caelus, even though they have exactly zero interests in common.
Caelus doesn't really get the concept of money, or at least he doesn't understand why other dragons make such a big fuss about it.
Amon has long since given up on arguing about it, now he actually thinks it's quite nice to have a friend who doesn't care about wealth at all.