fanciness
The quality of being extra fancy, decorative, or elegant.
Fanciness is the quality of being elaborate, decorative, or more dressed up than ordinary. A restaurant with chandeliers, cloth napkins, and waiters in bow ties has a level of fanciness you won't find at a burger joint. A wedding cake covered in sugar flowers and gold leaf has much more fanciness than a simple sheet cake.
The word describes when something goes beyond plain or practical to become more ornate or elegant. Your everyday sneakers are fine for school, but dress shoes have the fanciness needed for a formal event. A basic pencil works perfectly well, but a fountain pen has a certain fanciness to it.
Fanciness isn't always better, though. Sometimes people prefer simplicity. A fancy seven-course meal might impress guests, but sometimes you just want a good sandwich. Too much fanciness can even feel uncomfortable or overdone, like wearing a tuxedo to play basketball. The right amount of fanciness depends on the situation: what works for a fancy hotel might feel ridiculous at summer camp.
When people debate the fanciness of something, they're really discussing how elaborate or special it should be. Should your science fair project have a simple poster board or an elaborate display board? That's a question of how much fanciness fits the occasion.