Thanks for the kind words :3
Dracoins and Outfits were originally planned to do a lot more in the game but that feature got cut as development went on. Originally dracoins were going to be required for the good ending, and also be used to purchase outfits. outfits were going to give unique dialogue too. Now they're just around as collectables mostly. The outfits do still have a tiny influence on your final love. All characters have some outfits they like and dislike.