Pay is very high, but cashiers are not making $80k. That would nearly qualify as the median household income in Switzerland.
"The median wage in the Swiss private sector was 6,118 francs [~$6k] last year. A gas station shop worker in Lucerne is paid 3,570 francs a month"
http://www.bloomberg.com/news/articles/2014-05-18/swiss-reje...