My wife is entering a dental practice soon. She and her partner are looking to add some amenities to make the whole experience more comfortable and enjoyable (or less excruciating). Obviously, my first thought was to purchase a few DS lites for the waiting room. Most patients are adults, but I'm sure some would enjoy it, and certainly anyone who brings a kid. We could attach them to secure grips with flexible arms and attach those to a few of the chairs or the wall (and have the power cords run through the arm). Now I know that's all fine and dandy, but patients won't be able to change games, since the ds lite will be securely locked in. With a few user-friendly slot 1 flash cards, the patients could have a dozen or more games to choose from and every ds lite could have the same games too. So question is whether this is legal so long as we buy a copy of each game, or a copy of each game per ds lite? Also, opinions on whether this is worth the trouble?