Do you need a NZ web hosting company for NZ website?

Do you? Most of my site visitor are going to be New Zealanders, so I am guessing using a NZ web hosting company will make my site load faster? But I find alot of US based web hosting companies offering dirt cheap hosting plans as well as unlimited disk space etc which is superior comparing to NZ hosting companies, can someone with experience help me out here?

The interweb is worldwide so no, but it would make the pages load slightly better for Kiwis.

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