My son is very interested in Minecraft, and we want to encourage him to use it. However, we're a one-laptop family. I feel like it would be best to buy him a device just for his own use for such games. Without the money to spend on an entire PC or laptop, we're thinking a tablet device might be a good choice. Do any of you use a tablet for your kid's gaming? If so, can you advise what type of tablet would be best for this? We don't want to pay for another cell phone line, so it would need to be wi-fi ready without buying additional service.