Im currently a android user and Im looking to switch it up a bit. I want to give WP a try but I don't live in a country where I can get one on contract so I would have to pay full price. So Im looking for a cheap device that still runs well. I was looking at the Lumia 920 as it goes for around $300. Would this be a wise choice? Also is the marketplace region locked? Will I be able to use a international credit card on the US marketplace?