Bananas in Arizona are $0.57/lb and they were $12/k when I lived there. Apparently there was a banana shortage at the time but the usual price was still 4-5x what I would normally pay.
Clothing is also very expensive. Every time my sister comes back to the states she brings two gigantic duffel bags and stocks up on clothing.
The prices on anything else you want/need to buy like electronics, computers, cars, or bicycles are insane compared to the USA. Or even Japan, which isn't a country known for bargain prices.
I do think there is a bit of frontier pricing happening. Everything seemed cheaper in Melbourne than her town.
That said, she gets paid $95K for a part time job with full benefits. She had a similar job in the states that was full time and it paid $34,000 with minimal benefits.