If your business is also outside the US, it is a good thing. US financial services are unreliable for international merchants, and US customers are often not very aware of international arrangements like paying in a foreign currency, the cost of international shipping, business hours not being in one of the US time zones if they want a quick reply to a question, or the native language of a merchant not being English.
The World is a bit bigger than u think...
Yeah but Americans and some Europeans have basically all of the money.
Look up ad rates in the rest of the world and see how lucrative that business is.