The less lighting a restaurant has the fancier it is. amirite?

Dim lighting causes a cozy atmosphere, it's a marketing strategy. I'd you're cozy, you stay longer and spend more.

There's a restaurant in my city which is completely lightless. This is in order to replicate the experience of a blind person eating. I guess that by your criterion it's the fanciest ever.

My grandfather always use to say "prices just went up" whenever the lighting dimmed at a restaurant.

Or maybe the dirtier it is.

So by this logic a dining establishment that makes you eat in pitch black would be the fanciest of all.