Why do Japanese enjoy queuing to eat pizza, or is the question is, why do Japanese que to eat anything?
Queuing is almost an art in Japan, if you can call it that. They stand around, chat and wait intensely for the final moment. A line can be miles long and people rarely complain or whinge at a long line.
Today this is @ DaMichele the famous Naples pizzeria located in central Tokyo. It was a sunny Sunday afternoon, so you can expect hours of lineups.