no spam wrote:
....

Third, if you need to 'upsize' later its a lot easier to just put in a
larger breaker than putting in new or more wire.

If you wire for higher ampacity, then may as well install appropriately
sized breakers and outlets, etc., at the time. Otherwise, unless wasted
the extra money for the higher-rated outlets until that unforeseen maybe
never to happen time in the future, placing simply a larger breaker may
be fine for the wiring itself but not for the outlets, etc., ...

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