Having worked for a startup and lost my job to remote workers in a foreign country because they were cheaper and being told "we can hire 3 or 4 of them for the price of you" has left a bitter taste in my mouth.
Why should it matter if they also open an office in your country?
For clarity, I took the discussion as being about software, as physical goods (including hardware) are an entirely different beast which my points don't necessarily apply to.
Do the least amount of work that’ll get you as much money as possible and always look for a better offer.