To me the amount of holiday/vacation is a Big Deal. I was lucky when I lived in the US that my company offered four weeks (and I could earn extra comp days doing weekend tech support). Although I once had the general manager ask me point blank how I was taking more time off for a trip to Peru, so I went through and proved I had enough vacation days left. He still didn't seem too happy about it though. Perhaps most people didn't use all their vacation days?
Lack of vacation days is one of the reasons I'd be uncomfortable about living in the US again, so I could definitely see myself taking unpaid leave every few years like TFA suggests or just quitting my job. Then I could do important things like visiting family in NZ or getting in some serious skiing.