To start with, I think we're on the same page in some aspects and at least can appreciate each other's perspectives which is refreshing for an online debate. To answer your question, if overnight people stopped pre-ordering obviously there would be some short-term consequences. Pre-orders sold are currently used as a metric for a game's potential success so if this just stopped a lot of developers/publishers would be very concerned. However, once things settled and the industry realised no one was going to by their crap before release, we would see something of a golden age of gaming where developers would be forced to make their games good in order to be guarantee any substantial number of sales. Developers would switch focus from producing pre-release demos and promotional material and instead concentrate on perfecting their titles so people would want to buy them at release. Games would still sell as they do now and the successful titles would still be extremely profitable so the industry wouldn't collapse. In fact, the industry would probably grow because the overall quality of games would improve. I can understand why some people don't see pre-ordering as an inherently bad practice but I really struggle to see how anyone could think eliminating pre-ordering would be anything other than a positive for the industry and gamers.