There is not only Neapolitan pizza: practically every region has its own variant of pizza. And they are all very good
The best thing is that pizza is democratic and belongs to everyone: in some places you can buy a pizza for even less than 3 euros. And don't believe those who invent pizzas with gold and caviar: the real pizza is made with poor ingredients, such as tomatoes, sardines, black olives, olive oil, basil, mozzarella.
Situation is similar in a big part of Europe (and I guess US) as well, there are pizzerias everywhere. But its true, you are the kings of pizza, and I would add that you have generally the best cuisine in the world (Greece is a close 2nd to me).
Out of curiosity I just checked Google maps and in 500 meters radius of the place I live at the moment (very touristy city) there are 7 pizzerias. Unfortunately, I am very picky when it comes to pizza (more experience, higher demands) and rarely eat at any of those places so to actually get a very good neapolitan pizza I have to travel 4-5 km.