Or eyes and ears are the limiting factor when it comes to the advancement of sound and graphics. Twenty years ago, there was a great deal we could advance upon, but that just isn't the case any more. Most of us cannot detect the difference between the latest upgrades, so we think that it's not there. It is. I play old games all the time, and I enjoy them The best older games were not reliant on graphics, but on the story/playability. New games are so focused on graphics, that they tend to forget about those things. The games that stand the test of time, are those that can grip a person emotionally. Fallout 3 comes to mind in that aspect. With the FPS revolution, most games will be "obsolete" within 5 years. Unless a game has true immersion, it will be forgotten in time. Honestly, it's no different than going back and watching old cartoons. If you watched a cartoon because it was exciting and modern, it's terrible only a few short years later. If it had an actual story, it may still be worth watching.