I'm willing to accept a certain premium if it means supporting vendors closer to home, provided they offer a good level of service. Those who don't I couldn't care less about, even if they were based inside my letter box (provided they pay their rent on time
).
Having said that, your "supporting local astronomy" dollar will go a heck of a lot further if you support a local astronomy club that engages in outreach work and makes astronomy (as a hobby or otherwise) accessible to those who see the local vs overseas debate as positively irrelevant because they can't afford either.