Iirc, didn't Microsoft lose money on each console sold, but earn money for each game sold (through the developer having to pay money to microsoft in order to develop for their console)? If so, Microsoft has just as much to lose on people buying used games instead of new games. In fact, if someone would theoretically only buy used games, and never buy a single new game, wouldn't microsoft directly lose cash? In those cases, it would actually be better for microsoft if you chose to not buy their console (if you ignore the whole idea of "everyone has an xbox, so i will buy one too", which is just way too unpredictable).