I live in a remote part of Canada and have to buy pins sight unseen and get them shipped based on pictures. If the machine plays OK when it gets here, any other unexpected fixes at that point might be disappointing, but it's a cost of doing business. I don't expect to get into shipping things back and forth. Once it gets here, that's it, I'm on my own.
I would ask for money back if the thing doesn't turn on or was unplayable.
Hell, I just got a NIB Star Trek Pro with a severe issue 50 games in. Stuff happens, I'm not shipping it back.