Pizza in NYC was $1 a slice when I was a kid. Maybe in the 4th grade. I recall it went up to like $1.10 when I was that age and used to buy a slice for lunch. It was at least $2 by the time I was 18...more when I was in my 20’s.
When I was a kid growing up in Brooklyn, NY we would get a whole pizza for $1.50. It tasted great was always such a treat. Now you get a mediocre pizza for $13 to $15!