Each time I visit, I try to eat at least one slice of pizza and one bagel every day. The thing that blows me away is how generally good they are, no matter where I buy them. Of course I'll look at reviews, but I won't walk more than 5 blocks to get a slice. Never been disappointed.
Same thing visiting Paris - you can hunt for the BEST croissant, but the remarkable thing is that nearly everywhere you shop, you'll find a really, really good one. I live near Arsicault in SF, and though they might make the BEST croissant in the US (and I will probably live a shorter life due to the number of them I put in my body every week), I'd trade that for a really good croissant on every corner.
I think it reflects having shared cultural values around the food and a knowledge in the community of what makes the food great both in terms of inputs and outputs, and I hope we never stop valuing good pizza!!